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android / platform / external / chromium_org / 0c52c36e0ccceca983eebc2ac50f02233e35b2d9 / . / content / browser / renderer_host / render_widget_host_view_mac.mm
blob: dce9a5eb1710d8043513812c5f27338d1d4be664 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/render_widget_host_view_mac.h"
#import <objc/runtime.h>
#include <OpenGL/gl.h>
#include <QuartzCore/QuartzCore.h>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/command_line.h"
#include "base/debug/crash_logging.h"
#include "base/debug/trace_event.h"
#include "base/logging.h"
#include "base/mac/mac_util.h"
#include "base/mac/scoped_cftyperef.h"
#import "base/mac/scoped_nsobject.h"
#include "base/mac/sdk_forward_declarations.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/histogram.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/sys_info.h"
#import "content/browser/accessibility/browser_accessibility_cocoa.h"
#include "content/browser/accessibility/browser_accessibility_manager_mac.h"
#include "content/browser/compositor/resize_lock.h"
#include "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/renderer_host/compositing_iosurface_context_mac.h"
#include "content/browser/renderer_host/compositing_iosurface_layer_mac.h"
#include "content/browser/renderer_host/compositing_iosurface_mac.h"
#include "content/browser/renderer_host/render_widget_helper.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#import "content/browser/renderer_host/render_widget_host_view_mac_dictionary_helper.h"
#import "content/browser/renderer_host/render_widget_host_view_mac_editcommand_helper.h"
#import "content/browser/renderer_host/software_layer_mac.h"
#import "content/browser/renderer_host/text_input_client_mac.h"
#include "content/common/accessibility_messages.h"
#include "content/common/edit_command.h"
#include "content/common/gpu/gpu_messages.h"
#include "content/common/input_messages.h"
#include "content/common/view_messages.h"
#include "content/common/webplugin_geometry.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_widget_host_view_frame_subscriber.h"
#import "content/public/browser/render_widget_host_view_mac_delegate.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/browser/web_contents.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/WebKit/public/platform/WebScreenInfo.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "third_party/WebKit/public/web/mac/WebInputEventFactory.h"
#import "third_party/mozilla/ComplexTextInputPanel.h"
#include "ui/base/cocoa/animation_utils.h"
#import "ui/base/cocoa/fullscreen_window_manager.h"
#import "ui/base/cocoa/underlay_opengl_hosting_window.h"
#include "ui/events/keycodes/keyboard_codes.h"
#include "ui/base/layout.h"
#include "ui/compositor/compositor.h"
#include "ui/compositor/layer.h"
#include "ui/gfx/display.h"
#include "ui/gfx/point.h"
#include "ui/gfx/rect_conversions.h"
#include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
#include "ui/gfx/screen.h"
#include "ui/gfx/size_conversions.h"
#include "ui/gl/gl_switches.h"
using content::BrowserAccessibility;
using content::BrowserAccessibilityManager;
using content::EditCommand;
using content::FrameTreeNode;
using content::NativeWebKeyboardEvent;
using content::RenderFrameHost;
using content::RenderViewHost;
using content::RenderViewHostImpl;
using content::RenderWidgetHostImpl;
using content::RenderWidgetHostViewMac;
using content::RenderWidgetHostViewMacEditCommandHelper;
using content::TextInputClientMac;
using content::WebContents;
using blink::WebInputEvent;
using blink::WebInputEventFactory;
using blink::WebMouseEvent;
using blink::WebMouseWheelEvent;
using blink::WebGestureEvent;
// These are not documented, so use only after checking -respondsToSelector:.
@interface NSApplication (UndocumentedSpeechMethods)
- (void)speakString:(NSString*)string;
- (void)stopSpeaking:(id)sender;
- (BOOL)isSpeaking;
@end
// Declare things that are part of the 10.7 SDK.
#if !defined(MAC_OS_X_VERSION_10_7) || \
MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
static NSString* const NSWindowDidChangeBackingPropertiesNotification =
@"NSWindowDidChangeBackingPropertiesNotification";
#endif // 10.7
// This method will return YES for OS X versions 10.7.3 and later, and NO
// otherwise.
// Used to prevent a crash when building with the 10.7 SDK and accessing the
// notification below. See: http://crbug.com/260595.
static BOOL SupportsBackingPropertiesChangedNotification() {
// windowDidChangeBackingProperties: method has been added to the
// NSWindowDelegate protocol in 10.7.3, at the same time as the
// NSWindowDidChangeBackingPropertiesNotification notification was added.
// If the protocol contains this method description, the notification should
// be supported as well.
Protocol* windowDelegateProtocol = NSProtocolFromString(@"NSWindowDelegate");
struct objc_method_description methodDescription =
protocol_getMethodDescription(
windowDelegateProtocol,
@selector(windowDidChangeBackingProperties:),
NO,
YES);
// If the protocol does not contain the method, the returned method
// description is {NULL, NULL}
return methodDescription.name != NULL || methodDescription.types != NULL;
}
// Private methods:
@interface RenderWidgetHostViewCocoa ()
@property(nonatomic, assign) NSRange selectedRange;
@property(nonatomic, assign) NSRange markedRange;
+ (BOOL)shouldAutohideCursorForEvent:(NSEvent*)event;
- (id)initWithRenderWidgetHostViewMac:(RenderWidgetHostViewMac*)r;
- (void)processedWheelEvent:(const blink::WebMouseWheelEvent&)event
consumed:(BOOL)consumed;
- (void)keyEvent:(NSEvent*)theEvent wasKeyEquivalent:(BOOL)equiv;
- (void)windowDidChangeBackingProperties:(NSNotification*)notification;
- (void)windowChangedGlobalFrame:(NSNotification*)notification;
- (void)checkForPluginImeCancellation;
- (void)updateScreenProperties;
- (void)setResponderDelegate:
(NSObject<RenderWidgetHostViewMacDelegate>*)delegate;
@end
// A window subclass that allows the fullscreen window to become main and gain
// keyboard focus. This is only used for pepper flash. Normal fullscreen is
// handled by the browser.
@interface PepperFlashFullscreenWindow : UnderlayOpenGLHostingWindow
@end
@implementation PepperFlashFullscreenWindow
- (BOOL)canBecomeKeyWindow {
return YES;
}
- (BOOL)canBecomeMainWindow {
return YES;
}
@end
@interface RenderWidgetPopupWindow : NSWindow {
// The event tap that allows monitoring of all events, to properly close with
// a click outside the bounds of the window.
id clickEventTap_;
}
@end
@implementation RenderWidgetPopupWindow
- (id)initWithContentRect:(NSRect)contentRect
styleMask:(NSUInteger)windowStyle
backing:(NSBackingStoreType)bufferingType
defer:(BOOL)deferCreation {
if (self = [super initWithContentRect:contentRect
styleMask:windowStyle
backing:bufferingType
defer:deferCreation]) {
[self setOpaque:NO];
[self setBackgroundColor:[NSColor clearColor]];
[self startObservingClicks];
}
return self;
}
- (void)close {
[self stopObservingClicks];
[super close];
}
// Gets called when the menubar is clicked.
// Needed because the local event monitor doesn't see the click on the menubar.
- (void)beganTracking:(NSNotification*)notification {
[self close];
}
// Install the callback.
- (void)startObservingClicks {
clickEventTap_ = [NSEvent addLocalMonitorForEventsMatchingMask:NSAnyEventMask
handler:^NSEvent* (NSEvent* event) {
if ([event window] == self)
return event;
NSEventType eventType = [event type];
if (eventType == NSLeftMouseDown || eventType == NSRightMouseDown)
[self close];
return event;
}];
NSNotificationCenter* notificationCenter =
[NSNotificationCenter defaultCenter];
[notificationCenter addObserver:self
selector:@selector(beganTracking:)
name:NSMenuDidBeginTrackingNotification
object:[NSApp mainMenu]];
}
// Remove the callback.
- (void)stopObservingClicks {
if (!clickEventTap_)
return;
[NSEvent removeMonitor:clickEventTap_];
clickEventTap_ = nil;
NSNotificationCenter* notificationCenter =
[NSNotificationCenter defaultCenter];
[notificationCenter removeObserver:self
name:NSMenuDidBeginTrackingNotification
object:[NSApp mainMenu]];
}
@end
namespace {
// Maximum number of characters we allow in a tooltip.
const size_t kMaxTooltipLength = 1024;
// TODO(suzhe): Upstream this function.
blink::WebColor WebColorFromNSColor(NSColor *color) {
CGFloat r, g, b, a;
[color getRed:&r green:&g blue:&b alpha:&a];
return
std::max(0, std::min(static_cast<int>(lroundf(255.0f * a)), 255)) << 24 |
std::max(0, std::min(static_cast<int>(lroundf(255.0f * r)), 255)) << 16 |
std::max(0, std::min(static_cast<int>(lroundf(255.0f * g)), 255)) << 8 |
std::max(0, std::min(static_cast<int>(lroundf(255.0f * b)), 255));
}
// Extract underline information from an attributed string. Mostly copied from
// third_party/WebKit/Source/WebKit/mac/WebView/WebHTMLView.mm
void ExtractUnderlines(
NSAttributedString* string,
std::vector<blink::WebCompositionUnderline>* underlines) {
int length = [[string string] length];
int i = 0;
while (i < length) {
NSRange range;
NSDictionary* attrs = [string attributesAtIndex:i
longestEffectiveRange:&range
inRange:NSMakeRange(i, length - i)];
if (NSNumber *style = [attrs objectForKey:NSUnderlineStyleAttributeName]) {
blink::WebColor color = SK_ColorBLACK;
if (NSColor *colorAttr =
[attrs objectForKey:NSUnderlineColorAttributeName]) {
color = WebColorFromNSColor(
[colorAttr colorUsingColorSpaceName:NSDeviceRGBColorSpace]);
}
underlines->push_back(
blink::WebCompositionUnderline(range.location,
NSMaxRange(range),
color,
[style intValue] > 1,
SK_ColorTRANSPARENT));
}
i = range.location + range.length;
}
}
// EnablePasswordInput() and DisablePasswordInput() are copied from
// enableSecureTextInput() and disableSecureTextInput() functions in
// third_party/WebKit/WebCore/platform/SecureTextInput.cpp
// But we don't call EnableSecureEventInput() and DisableSecureEventInput()
// here, because they are already called in webkit and they are system wide
// functions.
void EnablePasswordInput() {
CFArrayRef inputSources = TISCreateASCIICapableInputSourceList();
TSMSetDocumentProperty(0, kTSMDocumentEnabledInputSourcesPropertyTag,
sizeof(CFArrayRef), &inputSources);
CFRelease(inputSources);
}
void DisablePasswordInput() {
TSMRemoveDocumentProperty(0, kTSMDocumentEnabledInputSourcesPropertyTag);
}
// Calls to [NSScreen screens], required by FlipYFromRectToScreen and
// FlipNSRectToRectScreen, can take several milliseconds. Only re-compute this
// value when screen info changes.
// TODO(ccameron): An observer on every RWHVCocoa will set this to false
// on NSApplicationDidChangeScreenParametersNotification. Only one observer
// is necessary.
bool g_screen_info_up_to_date = false;
float FlipYFromRectToScreen(float y, float rect_height) {
TRACE_EVENT0("browser", "FlipYFromRectToScreen");
static CGFloat screen_zero_height = 0;
if (!g_screen_info_up_to_date) {
if ([[NSScreen screens] count] > 0) {
screen_zero_height =
[[[NSScreen screens] objectAtIndex:0] frame].size.height;
g_screen_info_up_to_date = true;
} else {
return y;
}
}
return screen_zero_height - y - rect_height;
}
// Adjusts an NSRect in Cocoa screen coordinates to have an origin in the upper
// left of the primary screen (Carbon coordinates), and stuffs it into a
// gfx::Rect.
gfx::Rect FlipNSRectToRectScreen(const NSRect& rect) {
gfx::Rect new_rect(NSRectToCGRect(rect));
new_rect.set_y(FlipYFromRectToScreen(new_rect.y(), new_rect.height()));
return new_rect;
}
// Returns the window that visually contains the given view. This is different
// from [view window] in the case of tab dragging, where the view's owning
// window is a floating panel attached to the actual browser window that the tab
// is visually part of.
NSWindow* ApparentWindowForView(NSView* view) {
// TODO(shess): In case of !window, the view has been removed from
// the view hierarchy because the tab isn't main. Could retrieve
// the information from the main tab for our window.
NSWindow* enclosing_window = [view window];
// See if this is a tab drag window. The width check is to distinguish that
// case from extension popup windows.
NSWindow* ancestor_window = [enclosing_window parentWindow];
if (ancestor_window && (NSWidth([enclosing_window frame]) ==
NSWidth([ancestor_window frame]))) {
enclosing_window = ancestor_window;
}
return enclosing_window;
}
blink::WebScreenInfo GetWebScreenInfo(NSView* view) {
gfx::Display display =
gfx::Screen::GetNativeScreen()->GetDisplayNearestWindow(view);
NSScreen* screen = [NSScreen deepestScreen];
blink::WebScreenInfo results;
results.deviceScaleFactor = static_cast<int>(display.device_scale_factor());
results.depth = NSBitsPerPixelFromDepth([screen depth]);
results.depthPerComponent = NSBitsPerSampleFromDepth([screen depth]);
results.isMonochrome =
[[screen colorSpace] colorSpaceModel] == NSGrayColorSpaceModel;
results.rect = display.bounds();
results.availableRect = display.work_area();
results.orientationAngle = display.RotationAsDegree();
return results;
}
void RemoveLayerFromSuperlayer(
base::scoped_nsobject<CompositingIOSurfaceLayer> layer) {
// Disable the fade-out animation as the layer is removed.
ScopedCAActionDisabler disabler;
[layer removeFromSuperlayer];
}
} // namespace
namespace content {
////////////////////////////////////////////////////////////////////////////////
// DelegatedFrameHost, public:
ui::Compositor* RenderWidgetHostViewMac::GetCompositor() const {
return [browser_compositor_view_ compositor];
}
ui::Layer* RenderWidgetHostViewMac::GetLayer() {
return root_layer_.get();
}
RenderWidgetHostImpl* RenderWidgetHostViewMac::GetHost() {
return render_widget_host_;
}
void RenderWidgetHostViewMac::SchedulePaintInRect(
const gfx::Rect& damage_rect_in_dip) {
[browser_compositor_view_ compositor]->ScheduleFullRedraw();
}
bool RenderWidgetHostViewMac::IsVisible() {
return !render_widget_host_->is_hidden();
}
gfx::Size RenderWidgetHostViewMac::DesiredFrameSize() {
return GetViewBounds().size();
}
float RenderWidgetHostViewMac::CurrentDeviceScaleFactor() {
return ViewScaleFactor();
}
gfx::Size RenderWidgetHostViewMac::ConvertViewSizeToPixel(
const gfx::Size& size) {
return gfx::ToEnclosingRect(gfx::ScaleRect(gfx::Rect(size),
ViewScaleFactor())).size();
}
scoped_ptr<ResizeLock> RenderWidgetHostViewMac::CreateResizeLock(
bool defer_compositor_lock) {
NOTREACHED();
ResizeLock* lock = NULL;
return scoped_ptr<ResizeLock>(lock);
}
DelegatedFrameHost* RenderWidgetHostViewMac::GetDelegatedFrameHost() const {
return delegated_frame_host_.get();
}
///////////////////////////////////////////////////////////////////////////////
// RenderWidgetHostViewBase, public:
// static
void RenderWidgetHostViewBase::GetDefaultScreenInfo(
blink::WebScreenInfo* results) {
*results = GetWebScreenInfo(NULL);
}
///////////////////////////////////////////////////////////////////////////////
// RenderWidgetHostViewMac, public:
RenderWidgetHostViewMac::RenderWidgetHostViewMac(RenderWidgetHost* widget)
: render_widget_host_(RenderWidgetHostImpl::From(widget)),
text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
can_compose_inline_(true),
pending_latency_info_delay_(0),
pending_latency_info_delay_weak_ptr_factory_(this),
backing_store_scale_factor_(1),
is_loading_(false),
weak_factory_(this),
fullscreen_parent_host_view_(NULL),
overlay_view_weak_factory_(this),
software_frame_weak_ptr_factory_(this) {
software_frame_manager_.reset(new SoftwareFrameManager(
software_frame_weak_ptr_factory_.GetWeakPtr()));
// |cocoa_view_| owns us and we will be deleted when |cocoa_view_|
// goes away. Since we autorelease it, our caller must put
// |GetNativeView()| into the view hierarchy right after calling us.
cocoa_view_ = [[[RenderWidgetHostViewCocoa alloc]
initWithRenderWidgetHostViewMac:this] autorelease];
background_layer_.reset([[CALayer alloc] init]);
[background_layer_
setBackgroundColor:CGColorGetConstantColor(kCGColorWhite)];
[cocoa_view_ setLayer:background_layer_];
[cocoa_view_ setWantsLayer:YES];
render_widget_host_->SetView(this);
}
RenderWidgetHostViewMac::~RenderWidgetHostViewMac() {
// This is being called from |cocoa_view_|'s destructor, so invalidate the
// pointer.
cocoa_view_ = nil;
UnlockMouse();
// Make sure that the layer doesn't reach into the now-invalid object.
DestroyCompositedIOSurfaceAndLayer();
DestroySoftwareLayer();
// We are owned by RenderWidgetHostViewCocoa, so if we go away before the
// RenderWidgetHost does we need to tell it not to hold a stale pointer to
// us.
if (render_widget_host_)
render_widget_host_->SetView(NULL);
}
void RenderWidgetHostViewMac::SetDelegate(
NSObject<RenderWidgetHostViewMacDelegate>* delegate) {
[cocoa_view_ setResponderDelegate:delegate];
}
void RenderWidgetHostViewMac::SetAllowOverlappingViews(bool overlapping) {
// TODO(ccameron): Remove callers of this function.
}
///////////////////////////////////////////////////////////////////////////////
// RenderWidgetHostViewMac, RenderWidgetHostView implementation:
bool RenderWidgetHostViewMac::EnsureCompositedIOSurface() {
// If the context or the IOSurface's context has had an error, re-build
// everything from scratch.
if (compositing_iosurface_context_ &&
compositing_iosurface_context_->HasBeenPoisoned()) {
LOG(ERROR) << "Failing EnsureCompositedIOSurface because "
<< "context was poisoned";
return false;
}
if (compositing_iosurface_ &&
compositing_iosurface_->HasBeenPoisoned()) {
LOG(ERROR) << "Failing EnsureCompositedIOSurface because "
<< "surface was poisoned";
return false;
}
int current_window_number =
CompositingIOSurfaceContext::kOffscreenContextWindowNumber;
bool new_surface_needed = !compositing_iosurface_;
bool new_context_needed =
!compositing_iosurface_context_ ||
(compositing_iosurface_context_ &&
compositing_iosurface_context_->window_number() !=
current_window_number);
if (!new_surface_needed && !new_context_needed)
return true;
// Create the GL context and shaders.
if (new_context_needed) {
scoped_refptr<CompositingIOSurfaceContext> new_context =
CompositingIOSurfaceContext::Get(current_window_number);
// Un-bind the GL context from this view before binding the new GL
// context. Having two GL contexts bound to a view will result in
// crashes and corruption.
// http://crbug.com/230883
if (!new_context) {
LOG(ERROR) << "Failed to create CompositingIOSurfaceContext";
return false;
}
compositing_iosurface_context_ = new_context;
}
// Create the IOSurface texture.
if (new_surface_needed) {
compositing_iosurface_ = CompositingIOSurfaceMac::Create();
if (!compositing_iosurface_) {
LOG(ERROR) << "Failed to create CompositingIOSurface";
return false;
}
}
return true;
}
void RenderWidgetHostViewMac::EnsureSoftwareLayer() {
TRACE_EVENT0("browser", "RenderWidgetHostViewMac::EnsureSoftwareLayer");
if (software_layer_)
return;
software_layer_.reset([[SoftwareLayer alloc] init]);
DCHECK(software_layer_);
// Disable the fade-in animation as the layer is added.
ScopedCAActionDisabler disabler;
[background_layer_ addSublayer:software_layer_];
}
void RenderWidgetHostViewMac::DestroySoftwareLayer() {
if (!software_layer_)
return;
// Disable the fade-out animation as the layer is removed.
ScopedCAActionDisabler disabler;
[software_layer_ removeFromSuperlayer];
software_layer_.reset();
}
void RenderWidgetHostViewMac::EnsureCompositedIOSurfaceLayer() {
TRACE_EVENT0("browser",
"RenderWidgetHostViewMac::EnsureCompositedIOSurfaceLayer");
DCHECK(compositing_iosurface_context_);
if (compositing_iosurface_layer_)
return;
compositing_iosurface_layer_.reset([[CompositingIOSurfaceLayer alloc]
initWithIOSurface:compositing_iosurface_
withScaleFactor:compositing_iosurface_->scale_factor()
withClient:this]);
DCHECK(compositing_iosurface_layer_);
// Disable the fade-in animation as the layer is added.
ScopedCAActionDisabler disabler;
[background_layer_ addSublayer:compositing_iosurface_layer_];
}
void RenderWidgetHostViewMac::DestroyCompositedIOSurfaceLayer(
DestroyCompositedIOSurfaceLayerBehavior destroy_layer_behavior) {
if (!compositing_iosurface_layer_)
return;
if (destroy_layer_behavior == kRemoveLayerFromHierarchy) {
// Disable the fade-out animation as the layer is removed.
ScopedCAActionDisabler disabler;
[compositing_iosurface_layer_ removeFromSuperlayer];
}
[compositing_iosurface_layer_ resetClient];
compositing_iosurface_layer_.reset();
}
void RenderWidgetHostViewMac::DestroyCompositedIOSurfaceAndLayer() {
// Any pending frames will not be displayed, so ack them now.
SendPendingSwapAck();
DestroyCompositedIOSurfaceLayer(kRemoveLayerFromHierarchy);
compositing_iosurface_ = NULL;
compositing_iosurface_context_ = NULL;
}
bool RenderWidgetHostViewMac::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostViewMac, message)
IPC_MESSAGE_HANDLER(ViewHostMsg_PluginFocusChanged, OnPluginFocusChanged)
IPC_MESSAGE_HANDLER(ViewHostMsg_StartPluginIme, OnStartPluginIme)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void RenderWidgetHostViewMac::InitAsChild(
gfx::NativeView parent_view) {
}
void RenderWidgetHostViewMac::InitAsPopup(
RenderWidgetHostView* parent_host_view,
const gfx::Rect& pos) {
bool activatable = popup_type_ == blink::WebPopupTypeNone;
[cocoa_view_ setCloseOnDeactivate:YES];
[cocoa_view_ setCanBeKeyView:activatable ? YES : NO];
NSPoint origin_global = NSPointFromCGPoint(pos.origin().ToCGPoint());
origin_global.y = FlipYFromRectToScreen(origin_global.y, pos.height());
popup_window_.reset([[RenderWidgetPopupWindow alloc]
initWithContentRect:NSMakeRect(origin_global.x, origin_global.y,
pos.width(), pos.height())
styleMask:NSBorderlessWindowMask
backing:NSBackingStoreBuffered
defer:NO]);
[popup_window_ setLevel:NSPopUpMenuWindowLevel];
[popup_window_ setReleasedWhenClosed:NO];
[popup_window_ makeKeyAndOrderFront:nil];
[[popup_window_ contentView] addSubview:cocoa_view_];
[cocoa_view_ setFrame:[[popup_window_ contentView] bounds]];
[cocoa_view_ setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
[[NSNotificationCenter defaultCenter]
addObserver:cocoa_view_
selector:@selector(popupWindowWillClose:)
name:NSWindowWillCloseNotification
object:popup_window_];
}
// This function creates the fullscreen window and hides the dock and menubar if
// necessary. Note, this codepath is only used for pepper flash when
// pp::FlashFullScreen::SetFullscreen() is called. If
// pp::FullScreen::SetFullscreen() is called then the entire browser window
// will enter fullscreen instead.
void RenderWidgetHostViewMac::InitAsFullscreen(
RenderWidgetHostView* reference_host_view) {
fullscreen_parent_host_view_ =
static_cast<RenderWidgetHostViewMac*>(reference_host_view);
NSWindow* parent_window = nil;
if (reference_host_view)
parent_window = [reference_host_view->GetNativeView() window];
NSScreen* screen = [parent_window screen];
if (!screen)
screen = [NSScreen mainScreen];
pepper_fullscreen_window_.reset([[PepperFlashFullscreenWindow alloc]
initWithContentRect:[screen frame]
styleMask:NSBorderlessWindowMask
backing:NSBackingStoreBuffered
defer:NO]);
[pepper_fullscreen_window_ setLevel:NSFloatingWindowLevel];
[pepper_fullscreen_window_ setReleasedWhenClosed:NO];
[cocoa_view_ setCanBeKeyView:YES];
[cocoa_view_ setFrame:[[pepper_fullscreen_window_ contentView] bounds]];
[cocoa_view_ setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
// If the pepper fullscreen window isn't opaque then there are performance
// issues when it's on the discrete GPU and the Chrome window is being drawn
// to. http://crbug.com/171911
[pepper_fullscreen_window_ setOpaque:YES];
// Note that this forms a reference cycle between the fullscreen window and
// the rwhvmac: The PepperFlashFullscreenWindow retains cocoa_view_,
// but cocoa_view_ keeps pepper_fullscreen_window_ in an instance variable.
// This cycle is normally broken when -keyEvent: receives an <esc> key, which
// explicitly calls Shutdown on the render_widget_host_, which calls
// Destroy() on RWHVMac, which drops the reference to
// pepper_fullscreen_window_.
[[pepper_fullscreen_window_ contentView] addSubview:cocoa_view_];
// Note that this keeps another reference to pepper_fullscreen_window_.
fullscreen_window_manager_.reset([[FullscreenWindowManager alloc]
initWithWindow:pepper_fullscreen_window_.get()
desiredScreen:screen]);
[fullscreen_window_manager_ enterFullscreenMode];
[pepper_fullscreen_window_ makeKeyAndOrderFront:nil];
}
void RenderWidgetHostViewMac::release_pepper_fullscreen_window_for_testing() {
// See comment in InitAsFullscreen(): There is a reference cycle between
// rwhvmac and fullscreen window, which is usually broken by hitting <esc>.
// Tests that test pepper fullscreen mode without sending an <esc> event
// need to call this method to break the reference cycle.
[fullscreen_window_manager_ exitFullscreenMode];
fullscreen_window_manager_.reset();
[pepper_fullscreen_window_ close];
pepper_fullscreen_window_.reset();
}
int RenderWidgetHostViewMac::window_number() const {
NSWindow* window = [cocoa_view_ window];
if (!window)
return -1;
return [window windowNumber];
}
float RenderWidgetHostViewMac::ViewScaleFactor() const {
return ui::GetScaleFactorForNativeView(cocoa_view_);
}
void RenderWidgetHostViewMac::UpdateDisplayLink() {
static bool is_vsync_disabled =
CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableGpuVsync);
if (is_vsync_disabled)
return;
NSScreen* screen = [[cocoa_view_ window] screen];
NSDictionary* screen_description = [screen deviceDescription];
NSNumber* screen_number = [screen_description objectForKey:@"NSScreenNumber"];
CGDirectDisplayID display_id = [screen_number unsignedIntValue];
display_link_ = DisplayLinkMac::GetForDisplay(display_id);
if (!display_link_) {
// Note that on some headless systems, the display link will fail to be
// created, so this should not be a fatal error.
LOG(ERROR) << "Failed to create display link.";
}
}
void RenderWidgetHostViewMac::SendVSyncParametersToRenderer() {
if (!render_widget_host_ || !display_link_)
return;
base::TimeTicks timebase;
base::TimeDelta interval;
if (!display_link_->GetVSyncParameters(&timebase, &interval))
return;
render_widget_host_->UpdateVSyncParameters(timebase, interval);
}
void RenderWidgetHostViewMac::UpdateBackingStoreScaleFactor() {
if (!render_widget_host_)
return;
float new_scale_factor = ui::GetScaleFactorForNativeView(cocoa_view_);
if (new_scale_factor == backing_store_scale_factor_)
return;
backing_store_scale_factor_ = new_scale_factor;
render_widget_host_->NotifyScreenInfoChanged();
}
RenderWidgetHost* RenderWidgetHostViewMac::GetRenderWidgetHost() const {
return render_widget_host_;
}
void RenderWidgetHostViewMac::WasShown() {
if (!render_widget_host_->is_hidden())
return;
render_widget_host_->WasShown();
software_frame_manager_->SetVisibility(true);
if (delegated_frame_host_)
delegated_frame_host_->WasShown();
// Call setNeedsDisplay before pausing for new frames to come in -- if any
// do, and are drawn, then the needsDisplay bit will be cleared.
[compositing_iosurface_layer_ setNeedsDisplay];
PauseForPendingResizeOrRepaintsAndDraw();
}
void RenderWidgetHostViewMac::WasHidden() {
if (render_widget_host_->is_hidden())
return;
// Any pending frames will not be displayed until this is shown again. Ack
// them now.
SendPendingSwapAck();
// If we have a renderer, then inform it that we are being hidden so it can
// reduce its resource utilization.
render_widget_host_->WasHidden();
software_frame_manager_->SetVisibility(false);
if (delegated_frame_host_)
delegated_frame_host_->WasHidden();
}
void RenderWidgetHostViewMac::SetSize(const gfx::Size& size) {
gfx::Rect rect = GetViewBounds();
rect.set_size(size);
SetBounds(rect);
}
void RenderWidgetHostViewMac::SetBounds(const gfx::Rect& rect) {
// |rect.size()| is view coordinates, |rect.origin| is screen coordinates,
// TODO(thakis): fix, http://crbug.com/73362
if (render_widget_host_->is_hidden())
return;
// During the initial creation of the RenderWidgetHostView in
// WebContentsImpl::CreateRenderViewForRenderManager, SetSize is called with
// an empty size. In the Windows code flow, it is not ignored because
// subsequent sizing calls from the OS flow through TCVW::WasSized which calls
// SetSize() again. On Cocoa, we rely on the Cocoa view struture and resizer
// flags to keep things sized properly. On the other hand, if the size is not
// empty then this is a valid request for a pop-up.
if (rect.size().IsEmpty())
return;
// Ignore the position of |rect| for non-popup rwhvs. This is because
// background tabs do not have a window, but the window is required for the
// coordinate conversions. Popups are always for a visible tab.
//
// Note: If |cocoa_view_| has been removed from the view hierarchy, it's still
// valid for resizing to be requested (e.g., during tab capture, to size the
// view to screen-capture resolution). In this case, simply treat the view as
// relative to the screen.
BOOL isRelativeToScreen = IsPopup() ||
![[cocoa_view_ superview] isKindOfClass:[BaseView class]];
if (isRelativeToScreen) {
// The position of |rect| is screen coordinate system and we have to
// consider Cocoa coordinate system is upside-down and also multi-screen.
NSPoint origin_global = NSPointFromCGPoint(rect.origin().ToCGPoint());
NSSize size = NSMakeSize(rect.width(), rect.height());
size = [cocoa_view_ convertSize:size toView:nil];
origin_global.y = FlipYFromRectToScreen(origin_global.y, size.height);
NSRect frame = NSMakeRect(origin_global.x, origin_global.y,
size.width, size.height);
if (IsPopup())
[popup_window_ setFrame:frame display:YES];
else
[cocoa_view_ setFrame:frame];
} else {
BaseView* superview = static_cast<BaseView*>([cocoa_view_ superview]);
gfx::Rect rect2 = [superview flipNSRectToRect:[cocoa_view_ frame]];
rect2.set_width(rect.width());
rect2.set_height(rect.height());
[cocoa_view_ setFrame:[superview flipRectToNSRect:rect2]];
}
}
gfx::NativeView RenderWidgetHostViewMac::GetNativeView() const {
return cocoa_view_;
}
gfx::NativeViewId RenderWidgetHostViewMac::GetNativeViewId() const {
return reinterpret_cast<gfx::NativeViewId>(GetNativeView());
}
gfx::NativeViewAccessible RenderWidgetHostViewMac::GetNativeViewAccessible() {
NOTIMPLEMENTED();
return static_cast<gfx::NativeViewAccessible>(NULL);
}
void RenderWidgetHostViewMac::MovePluginWindows(
const std::vector<WebPluginGeometry>& moves) {
// Must be overridden, but unused on this platform. Core Animation
// plugins are drawn by the GPU process (through the compositor),
// and Core Graphics plugins are drawn by the renderer process.
DCHECK_CURRENTLY_ON(BrowserThread::UI);
}
void RenderWidgetHostViewMac::Focus() {
[[cocoa_view_ window] makeFirstResponder:cocoa_view_];
}
void RenderWidgetHostViewMac::Blur() {
UnlockMouse();
[[cocoa_view_ window] makeFirstResponder:nil];
}
bool RenderWidgetHostViewMac::HasFocus() const {
return [[cocoa_view_ window] firstResponder] == cocoa_view_;
}
bool RenderWidgetHostViewMac::IsSurfaceAvailableForCopy() const {
if (delegated_frame_host_)
return delegated_frame_host_->CanCopyToBitmap();
return software_frame_manager_->HasCurrentFrame() ||
(compositing_iosurface_ && compositing_iosurface_->HasIOSurface());
}
void RenderWidgetHostViewMac::Show() {
[cocoa_view_ setHidden:NO];
WasShown();
}
void RenderWidgetHostViewMac::Hide() {
[cocoa_view_ setHidden:YES];
WasHidden();
}
bool RenderWidgetHostViewMac::IsShowing() {
return ![cocoa_view_ isHidden];
}
gfx::Rect RenderWidgetHostViewMac::GetViewBounds() const {
NSRect bounds = [cocoa_view_ bounds];
// TODO(shess): In case of !window, the view has been removed from
// the view hierarchy because the tab isn't main. Could retrieve
// the information from the main tab for our window.
NSWindow* enclosing_window = ApparentWindowForView(cocoa_view_);
if (!enclosing_window)
return gfx::Rect(gfx::Size(NSWidth(bounds), NSHeight(bounds)));
bounds = [cocoa_view_ convertRect:bounds toView:nil];
bounds.origin = [enclosing_window convertBaseToScreen:bounds.origin];
return FlipNSRectToRectScreen(bounds);
}
void RenderWidgetHostViewMac::UpdateCursor(const WebCursor& cursor) {
WebCursor web_cursor = cursor;
[cocoa_view_ updateCursor:web_cursor.GetNativeCursor()];
}
void RenderWidgetHostViewMac::SetIsLoading(bool is_loading) {
is_loading_ = is_loading;
// If we ever decide to show the waiting cursor while the page is loading
// like Chrome does on Windows, call |UpdateCursor()| here.
}
void RenderWidgetHostViewMac::TextInputStateChanged(
const ViewHostMsg_TextInputState_Params& params) {
if (text_input_type_ != params.type ||
can_compose_inline_ != params.can_compose_inline) {
text_input_type_ = params.type;
can_compose_inline_ = params.can_compose_inline;
if (HasFocus()) {
SetTextInputActive(true);
// Let AppKit cache the new input context to make IMEs happy.
// See http://crbug.com/73039.
[NSApp updateWindows];
#ifndef __LP64__
UseInputWindow(TSMGetActiveDocument(), !can_compose_inline_);
#endif
}
}
}
void RenderWidgetHostViewMac::ImeCancelComposition() {
[cocoa_view_ cancelComposition];
}
void RenderWidgetHostViewMac::ImeCompositionRangeChanged(
const gfx::Range& range,
const std::vector<gfx::Rect>& character_bounds) {
// The RangeChanged message is only sent with valid values. The current
// caret position (start == end) will be sent if there is no IME range.
[cocoa_view_ setMarkedRange:range.ToNSRange()];
composition_range_ = range;
composition_bounds_ = character_bounds;
}
void RenderWidgetHostViewMac::RenderProcessGone(base::TerminationStatus status,
int error_code) {
Destroy();
}
void RenderWidgetHostViewMac::Destroy() {
[[NSNotificationCenter defaultCenter]
removeObserver:cocoa_view_
name:NSWindowWillCloseNotification
object:popup_window_];
// We've been told to destroy.
[cocoa_view_ retain];
[cocoa_view_ removeFromSuperview];
[cocoa_view_ autorelease];
[popup_window_ close];
popup_window_.autorelease();
[fullscreen_window_manager_ exitFullscreenMode];
fullscreen_window_manager_.reset();
[pepper_fullscreen_window_ close];
// This can be called as part of processing the window's responder
// chain, for instance |-performKeyEquivalent:|. In that case the
// object needs to survive until the stack unwinds.
pepper_fullscreen_window_.autorelease();
// Delete the delegated frame state, which will reach back into
// render_widget_host_.
[browser_compositor_view_ resetClient];
delegated_frame_host_.reset();
root_layer_.reset();
// We get this call just before |render_widget_host_| deletes
// itself. But we are owned by |cocoa_view_|, which may be retained
// by some other code. Examples are WebContentsViewMac's
// |latent_focus_view_| and TabWindowController's
// |cachedContentView_|.
render_widget_host_ = NULL;
}
// Called from the renderer to tell us what the tooltip text should be. It
// calls us frequently so we need to cache the value to prevent doing a lot
// of repeat work.
void RenderWidgetHostViewMac::SetTooltipText(
const base::string16& tooltip_text) {
if (tooltip_text != tooltip_text_ && [[cocoa_view_ window] isKeyWindow]) {
tooltip_text_ = tooltip_text;
// Clamp the tooltip length to kMaxTooltipLength. It's a DOS issue on
// Windows; we're just trying to be polite. Don't persist the trimmed
// string, as then the comparison above will always fail and we'll try to
// set it again every single time the mouse moves.
base::string16 display_text = tooltip_text_;
if (tooltip_text_.length() > kMaxTooltipLength)
display_text = tooltip_text_.substr(0, kMaxTooltipLength);
NSString* tooltip_nsstring = base::SysUTF16ToNSString(display_text);
[cocoa_view_ setToolTipAtMousePoint:tooltip_nsstring];
}
}
bool RenderWidgetHostViewMac::SupportsSpeech() const {
return [NSApp respondsToSelector:@selector(speakString:)] &&
[NSApp respondsToSelector:@selector(stopSpeaking:)];
}
void RenderWidgetHostViewMac::SpeakSelection() {
if ([NSApp respondsToSelector:@selector(speakString:)])
[NSApp speakString:base::SysUTF8ToNSString(selected_text_)];
}
bool RenderWidgetHostViewMac::IsSpeaking() const {
return [NSApp respondsToSelector:@selector(isSpeaking)] &&
[NSApp isSpeaking];
}
void RenderWidgetHostViewMac::StopSpeaking() {
if ([NSApp respondsToSelector:@selector(stopSpeaking:)])
[NSApp stopSpeaking:cocoa_view_];
}
//
// RenderWidgetHostViewCocoa uses the stored selection text,
// which implements NSServicesRequests protocol.
//
void RenderWidgetHostViewMac::SelectionChanged(const base::string16& text,
size_t offset,
const gfx::Range& range) {
if (range.is_empty() || text.empty()) {
selected_text_.clear();
} else {
size_t pos = range.GetMin() - offset;
size_t n = range.length();
DCHECK(pos + n <= text.length()) << "The text can not fully cover range.";
if (pos >= text.length()) {
DCHECK(false) << "The text can not cover range.";
return;
}
selected_text_ = base::UTF16ToUTF8(text.substr(pos, n));
}
[cocoa_view_ setSelectedRange:range.ToNSRange()];
// Updates markedRange when there is no marked text so that retrieving
// markedRange immediately after calling setMarkdText: returns the current
// caret position.
if (![cocoa_view_ hasMarkedText]) {
[cocoa_view_ setMarkedRange:range.ToNSRange()];
}
RenderWidgetHostViewBase::SelectionChanged(text, offset, range);
}
void RenderWidgetHostViewMac::SelectionBoundsChanged(
const ViewHostMsg_SelectionBounds_Params& params) {
if (params.anchor_rect == params.focus_rect)
caret_rect_ = params.anchor_rect;
}
void RenderWidgetHostViewMac::ScrollOffsetChanged() {
}
void RenderWidgetHostViewMac::SetShowingContextMenu(bool showing) {
RenderWidgetHostViewBase::SetShowingContextMenu(showing);
// Create a fake mouse event to inform the render widget that the mouse
// left or entered.
NSWindow* window = [cocoa_view_ window];
// TODO(asvitkine): If the location outside of the event stream doesn't
// correspond to the current event (due to delayed event processing), then
// this may result in a cursor flicker if there are later mouse move events
// in the pipeline. Find a way to use the mouse location from the event that
// dismissed the context menu.
NSPoint location = [window mouseLocationOutsideOfEventStream];
NSEvent* event = [NSEvent mouseEventWithType:NSMouseMoved
location:location
modifierFlags:0
timestamp:0
windowNumber:window_number()
context:nil
eventNumber:0
clickCount:0
pressure:0];
WebMouseEvent web_event =
WebInputEventFactory::mouseEvent(event, cocoa_view_);
if (showing)
web_event.type = WebInputEvent::MouseLeave;
ForwardMouseEvent(web_event);
}
bool RenderWidgetHostViewMac::IsPopup() const {
return popup_type_ != blink::WebPopupTypeNone;
}
void RenderWidgetHostViewMac::CopyFromCompositingSurface(
const gfx::Rect& src_subrect,
const gfx::Size& dst_size,
const base::Callback<void(bool, const SkBitmap&)>& callback,
const SkBitmap::Config config) {
if (delegated_frame_host_) {
delegated_frame_host_->CopyFromCompositingSurface(
src_subrect, dst_size, callback, config);
return;
}
if (config != SkBitmap::kARGB_8888_Config) {
NOTIMPLEMENTED();
callback.Run(false, SkBitmap());
}
base::ScopedClosureRunner scoped_callback_runner(
base::Bind(callback, false, SkBitmap()));
float scale = ui::GetScaleFactorForNativeView(cocoa_view_);
gfx::Size dst_pixel_size = gfx::ToFlooredSize(
gfx::ScaleSize(dst_size, scale));
if (compositing_iosurface_ && compositing_iosurface_->HasIOSurface()) {
ignore_result(scoped_callback_runner.Release());
compositing_iosurface_->CopyTo(GetScaledOpenGLPixelRect(src_subrect),
dst_pixel_size,
callback);
} else if (software_frame_manager_->HasCurrentFrame()) {
gfx::Rect src_pixel_rect = gfx::ToEnclosingRect(gfx::ScaleRect(
src_subrect,
software_frame_manager_->GetCurrentFrameDeviceScaleFactor()));
SkBitmap source_bitmap;
source_bitmap.setConfig(
SkBitmap::kARGB_8888_Config,
software_frame_manager_->GetCurrentFrameSizeInPixels().width(),
software_frame_manager_->GetCurrentFrameSizeInPixels().height(),
0,
kOpaque_SkAlphaType);
source_bitmap.setPixels(software_frame_manager_->GetCurrentFramePixels());
SkBitmap target_bitmap;
target_bitmap.setConfig(
SkBitmap::kARGB_8888_Config,
dst_pixel_size.width(),
dst_pixel_size.height(),
0,
kOpaque_SkAlphaType);
if (!target_bitmap.allocPixels())
return;
SkCanvas target_canvas(target_bitmap);
SkRect src_pixel_skrect = SkRect::MakeXYWH(
src_pixel_rect.x(), src_pixel_rect.y(),
src_pixel_rect.width(), src_pixel_rect.height());
target_canvas.drawBitmapRectToRect(
source_bitmap,
&src_pixel_skrect,
SkRect::MakeXYWH(0, 0, dst_pixel_size.width(), dst_pixel_size.height()),
NULL,
SkCanvas::kNone_DrawBitmapRectFlag);
ignore_result(scoped_callback_runner.Release());
callback.Run(true, target_bitmap);
} else {
callback.Run(false, SkBitmap());
}
}
void RenderWidgetHostViewMac::CopyFromCompositingSurfaceToVideoFrame(
const gfx::Rect& src_subrect,
const scoped_refptr<media::VideoFrame>& target,
const base::Callback<void(bool)>& callback) {
if (delegated_frame_host_) {
delegated_frame_host_->CopyFromCompositingSurfaceToVideoFrame(
src_subrect, target, callback);
return;
}
base::ScopedClosureRunner scoped_callback_runner(base::Bind(callback, false));
if (!compositing_iosurface_ || !compositing_iosurface_->HasIOSurface())
return;
if (!target.get()) {
NOTREACHED();
return;
}
if (target->format() != media::VideoFrame::YV12 &&
target->format() != media::VideoFrame::I420) {
NOTREACHED();
return;
}
if (src_subrect.IsEmpty())
return;
ignore_result(scoped_callback_runner.Release());
compositing_iosurface_->CopyToVideoFrame(
GetScaledOpenGLPixelRect(src_subrect),
target,
callback);
}
bool RenderWidgetHostViewMac::CanCopyToVideoFrame() const {
if (delegated_frame_host_)
return delegated_frame_host_->CanCopyToVideoFrame();
return (!software_frame_manager_->HasCurrentFrame() &&
compositing_iosurface_ &&
compositing_iosurface_->HasIOSurface());
}
bool RenderWidgetHostViewMac::CanSubscribeFrame() const {
if (delegated_frame_host_)
return delegated_frame_host_->CanSubscribeFrame();
return !software_frame_manager_->HasCurrentFrame();
}
void RenderWidgetHostViewMac::BeginFrameSubscription(
scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) {
if (delegated_frame_host_) {
delegated_frame_host_->BeginFrameSubscription(subscriber.Pass());
return;
}
frame_subscriber_ = subscriber.Pass();
}
void RenderWidgetHostViewMac::EndFrameSubscription() {
if (delegated_frame_host_) {
delegated_frame_host_->EndFrameSubscription();
return;
}
frame_subscriber_.reset();
}
// Sets whether or not to accept first responder status.
void RenderWidgetHostViewMac::SetTakesFocusOnlyOnMouseDown(bool flag) {
[cocoa_view_ setTakesFocusOnlyOnMouseDown:flag];
}
void RenderWidgetHostViewMac::ForwardMouseEvent(const WebMouseEvent& event) {
if (render_widget_host_)
render_widget_host_->ForwardMouseEvent(event);
if (event.type == WebInputEvent::MouseLeave) {
[cocoa_view_ setToolTipAtMousePoint:nil];
tooltip_text_.clear();
}
}
void RenderWidgetHostViewMac::KillSelf() {
if (!weak_factory_.HasWeakPtrs()) {
[cocoa_view_ setHidden:YES];
base::MessageLoop::current()->PostTask(FROM_HERE,
base::Bind(&RenderWidgetHostViewMac::ShutdownHost,
weak_factory_.GetWeakPtr()));
}
}
bool RenderWidgetHostViewMac::PostProcessEventForPluginIme(
const NativeWebKeyboardEvent& event) {
// Check WebInputEvent type since multiple types of events can be sent into
// WebKit for the same OS event (e.g., RawKeyDown and Char), so filtering is
// necessary to avoid double processing.
// Also check the native type, since NSFlagsChanged is considered a key event
// for WebKit purposes, but isn't considered a key event by the OS.
if (event.type == WebInputEvent::RawKeyDown &&
[event.os_event type] == NSKeyDown)
return [cocoa_view_ postProcessEventForPluginIme:event.os_event];
return false;
}
void RenderWidgetHostViewMac::PluginImeCompositionCompleted(
const base::string16& text, int plugin_id) {
if (render_widget_host_) {
render_widget_host_->Send(new ViewMsg_PluginImeCompositionCompleted(
render_widget_host_->GetRoutingID(), text, plugin_id));
}
}
void RenderWidgetHostViewMac::CompositorSwapBuffers(
IOSurfaceID surface_handle,
const gfx::Size& size,
float surface_scale_factor,
const std::vector<ui::LatencyInfo>& latency_info) {
// Ensure that the frame be acked unless it is explicitly passed to a
// display function.
base::ScopedClosureRunner scoped_ack(
base::Bind(&RenderWidgetHostViewMac::SendPendingSwapAck,
weak_factory_.GetWeakPtr()));
if (render_widget_host_->is_hidden())
return;
// Ensure that if this function exits before the frame is set up (but not
// necessarily drawn) then it is treated as an error.
base::ScopedClosureRunner scoped_error(
base::Bind(&RenderWidgetHostViewMac::GotAcceleratedCompositingError,
weak_factory_.GetWeakPtr()));
AddPendingLatencyInfo(latency_info);
// If compositing_iosurface_ exists and has been poisoned, destroy it
// and allow EnsureCompositedIOSurface to recreate it below. Keep a
// reference to the destroyed layer around until after the below call
// to LayoutLayers, to avoid flickers.
base::ScopedClosureRunner scoped_layer_remover;
if (compositing_iosurface_context_ &&
compositing_iosurface_context_->HasBeenPoisoned()) {
scoped_layer_remover.Reset(
base::Bind(RemoveLayerFromSuperlayer, compositing_iosurface_layer_));
DestroyCompositedIOSurfaceLayer(kLeaveLayerInHierarchy);
DestroyCompositedIOSurfaceAndLayer();
}
// Ensure compositing_iosurface_ and compositing_iosurface_context_ be
// allocated.
if (!EnsureCompositedIOSurface()) {
LOG(ERROR) << "Failed EnsureCompositingIOSurface";
return;
}
// Make the context current and update the IOSurface with the handle
// passed in by the swap command.
{
gfx::ScopedCGLSetCurrentContext scoped_set_current_context(
compositing_iosurface_context_->cgl_context());
if (!compositing_iosurface_->SetIOSurfaceWithContextCurrent(
compositing_iosurface_context_, surface_handle, size,
surface_scale_factor)) {
LOG(ERROR) << "Failed SetIOSurface on CompositingIOSurfaceMac";
return;
}
}
// Grab video frames now that the IOSurface has been set up. Note that this
// will be done in an offscreen context, so it is necessary to re-set the
// current context afterward.
bool frame_was_captured = false;
if (frame_subscriber_) {
const base::TimeTicks present_time = base::TimeTicks::Now();
scoped_refptr<media::VideoFrame> frame;
RenderWidgetHostViewFrameSubscriber::DeliverFrameCallback callback;
if (frame_subscriber_->ShouldCaptureFrame(present_time,
&frame, &callback)) {
// Flush the context that updated the IOSurface, to ensure that the
// context that does the copy picks up the correct version.
{
gfx::ScopedCGLSetCurrentContext scoped_set_current_context(
compositing_iosurface_context_->cgl_context());
glFlush();
}
compositing_iosurface_->CopyToVideoFrame(
gfx::Rect(size), frame,
base::Bind(callback, present_time));
frame_was_captured = true;
}
}
// At this point the surface, its context, and its layer have been set up, so
// don't generate an error (one may be generated when drawing).
ignore_result(scoped_error.Release());
GotAcceleratedFrame();
gfx::Size window_size(NSSizeToCGSize([cocoa_view_ frame].size));
if (window_size.IsEmpty()) {
// setNeedsDisplay will never display and we'll never ack if the window is
// empty, so ack now and don't bother calling setNeedsDisplay below.
return;
}
if (window_number() <= 0) {
// It's normal for a backgrounded tab that is being captured to have no
// window but not be hidden. Immediately ack the frame, and don't try to
// draw it.
if (frame_was_captured)
return;
// If this frame was not captured, there is likely some sort of bug. Ack
// the frame and hope for the best. Because the IOSurface and layer are
// populated, it will likely be displayed when the view is added to a
// window's hierarchy.
// TODO(shess) If the view does not have a window, or the window
// does not have backing, the IOSurface will log "invalid drawable"
// in -setView:. It is not clear how this code is reached with such
// a case, so record some info into breakpad (some subset of
// browsers are likely to crash later for unrelated reasons).
// http://crbug.com/148882
const char* const kCrashKey = "rwhvm_window";
NSWindow* window = [cocoa_view_ window];
if (!window) {
base::debug::SetCrashKeyValue(kCrashKey, "Missing window");
} else {
std::string value =
base::StringPrintf("window %s delegate %s controller %s",
object_getClassName(window),
object_getClassName([window delegate]),
object_getClassName([window windowController]));
base::debug::SetCrashKeyValue(kCrashKey, value);
}
return;
}
// If the window is occluded, then this frame's display call may be severely
// throttled. This is a good thing, unless tab capture may be active,
// because the broadcast will be inappropriately throttled.
// http://crbug.com/350410
NSWindow* window = [cocoa_view_ window];
if (window && [window respondsToSelector:@selector(occlusionState)]) {
bool window_is_occluded =
!([window occlusionState] & NSWindowOcclusionStateVisible);
// Note that we aggressively ack even if this particular frame is not being
// captured.
if (window_is_occluded && frame_subscriber_)
scoped_ack.Reset();
}
// If we reach here, then the frame will be displayed by a future draw
// call, so don't make the callback.
ignore_result(scoped_ack.Release());
DCHECK(compositing_iosurface_layer_);
[compositing_iosurface_layer_ gotNewFrame];
// Try to finish previous copy requests after draw to get better pipelining.
if (compositing_iosurface_)
compositing_iosurface_->CheckIfAllCopiesAreFinished(false);
// The IOSurface's size may have changed, so re-layout the layers to take
// this into account. This may force an immediate draw.
LayoutLayers();
}
void RenderWidgetHostViewMac::GotAcceleratedCompositingError() {
LOG(ERROR) << "Encountered accelerated compositing error";
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&RenderWidgetHostViewMac::DestroyCompositingStateOnError,
weak_factory_.GetWeakPtr()));
}
void RenderWidgetHostViewMac::DestroyCompositingStateOnError() {
// This should be called with a clean stack. Make sure that no context is
// current.
DCHECK(!CGLGetCurrentContext());
// The existing GL contexts may be in a bad state, so don't re-use any of the
// existing ones anymore, rather, allocate new ones.
if (compositing_iosurface_context_)
compositing_iosurface_context_->PoisonContextAndSharegroup();
DestroyCompositedIOSurfaceAndLayer();
// Request that a new frame be generated and dirty the view.
if (render_widget_host_)
render_widget_host_->ScheduleComposite();
[cocoa_view_ setNeedsDisplay:YES];
// TODO(ccameron): It may be a good idea to request that the renderer recreate
// its GL context as well, and fall back to software if this happens
// repeatedly.
}
void RenderWidgetHostViewMac::SetOverlayView(
RenderWidgetHostViewMac* overlay, const gfx::Point& offset) {
if (overlay_view_)
overlay_view_->underlay_view_.reset();
overlay_view_ = overlay->overlay_view_weak_factory_.GetWeakPtr();
overlay_view_->underlay_view_ = overlay_view_weak_factory_.GetWeakPtr();
}
void RenderWidgetHostViewMac::RemoveOverlayView() {
if (overlay_view_) {
overlay_view_->underlay_view_.reset();
overlay_view_.reset();
}
}
bool RenderWidgetHostViewMac::GetLineBreakIndex(
const std::vector<gfx::Rect>& bounds,
const gfx::Range& range,
size_t* line_break_point) {
DCHECK(line_break_point);
if (range.start() >= bounds.size() || range.is_reversed() || range.is_empty())
return false;
// We can't check line breaking completely from only rectangle array. Thus we
// assume the line breaking as the next character's y offset is larger than
// a threshold. Currently the threshold is determined as minimum y offset plus
// 75% of maximum height.
// TODO(nona): Check the threshold is reliable or not.
// TODO(nona): Bidi support.
const size_t loop_end_idx = std::min(bounds.size(), range.end());
int max_height = 0;
int min_y_offset = kint32max;
for (size_t idx = range.start(); idx < loop_end_idx; ++idx) {
max_height = std::max(max_height, bounds[idx].height());
min_y_offset = std::min(min_y_offset, bounds[idx].y());
}
int line_break_threshold = min_y_offset + (max_height * 3 / 4);
for (size_t idx = range.start(); idx < loop_end_idx; ++idx) {
if (bounds[idx].y() > line_break_threshold) {
*line_break_point = idx;
return true;
}
}
return false;
}
gfx::Rect RenderWidgetHostViewMac::GetFirstRectForCompositionRange(
const gfx::Range& range,
gfx::Range* actual_range) {
DCHECK(actual_range);
DCHECK(!composition_bounds_.empty());
DCHECK(range.start() <= composition_bounds_.size());
DCHECK(range.end() <= composition_bounds_.size());
if (range.is_empty()) {
*actual_range = range;
if (range.start() == composition_bounds_.size()) {
return gfx::Rect(composition_bounds_[range.start() - 1].right(),
composition_bounds_[range.start() - 1].y(),
0,
composition_bounds_[range.start() - 1].height());
} else {
return gfx::Rect(composition_bounds_[range.start()].x(),
composition_bounds_[range.start()].y(),
0,
composition_bounds_[range.start()].height());
}
}
size_t end_idx;
if (!GetLineBreakIndex(composition_bounds_, range, &end_idx)) {
end_idx = range.end();
}
*actual_range = gfx::Range(range.start(), end_idx);
gfx::Rect rect = composition_bounds_[range.start()];
for (size_t i = range.start() + 1; i < end_idx; ++i) {
rect.Union(composition_bounds_[i]);
}
return rect;
}
gfx::Range RenderWidgetHostViewMac::ConvertCharacterRangeToCompositionRange(
const gfx::Range& request_range) {
if (composition_range_.is_empty())
return gfx::Range::InvalidRange();
if (request_range.is_reversed())
return gfx::Range::InvalidRange();
if (request_range.start() < composition_range_.start() ||
request_range.start() > composition_range_.end() ||
request_range.end() > composition_range_.end()) {
return gfx::Range::InvalidRange();
}
return gfx::Range(
request_range.start() - composition_range_.start(),
request_range.end() - composition_range_.start());
}
WebContents* RenderWidgetHostViewMac::GetWebContents() {
if (!render_widget_host_->IsRenderView())
return NULL;
return WebContents::FromRenderViewHost(
RenderViewHost::From(render_widget_host_));
}
bool RenderWidgetHostViewMac::GetCachedFirstRectForCharacterRange(
NSRange range,
NSRect* rect,
NSRange* actual_range) {
DCHECK(rect);
// This exists to make IMEs more responsive, see http://crbug.com/115920
TRACE_EVENT0("browser",
"RenderWidgetHostViewMac::GetFirstRectForCharacterRange");
// If requested range is same as caret location, we can just return it.
if (selection_range_.is_empty() && gfx::Range(range) == selection_range_) {
if (actual_range)
*actual_range = range;
*rect = NSRectFromCGRect(caret_rect_.ToCGRect());
return true;
}
const gfx::Range request_range_in_composition =
ConvertCharacterRangeToCompositionRange(gfx::Range(range));
if (request_range_in_composition == gfx::Range::InvalidRange())
return false;
// If firstRectForCharacterRange in WebFrame is failed in renderer,
// ImeCompositionRangeChanged will be sent with empty vector.
if (composition_bounds_.empty())
return false;
DCHECK_EQ(composition_bounds_.size(), composition_range_.length());
gfx::Range ui_actual_range;
*rect = NSRectFromCGRect(GetFirstRectForCompositionRange(
request_range_in_composition,
&ui_actual_range).ToCGRect());
if (actual_range) {
*actual_range = gfx::Range(
composition_range_.start() + ui_actual_range.start(),
composition_range_.start() + ui_actual_range.end()).ToNSRange();
}
return true;
}
void RenderWidgetHostViewMac::AcceleratedSurfaceBuffersSwapped(
const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
int gpu_host_id) {
TRACE_EVENT0("browser",
"RenderWidgetHostViewMac::AcceleratedSurfaceBuffersSwapped");
DCHECK_CURRENTLY_ON(BrowserThread::UI);
IOSurfaceID io_surface_handle =
static_cast<IOSurfaceID>(params.surface_handle);
AddPendingSwapAck(params.route_id,
gpu_host_id,
compositing_iosurface_ ?
compositing_iosurface_->GetRendererID() : 0);
CompositorSwapBuffers(io_surface_handle,
params.size,
params.scale_factor,
params.latency_info);
}
void RenderWidgetHostViewMac::AcceleratedSurfacePostSubBuffer(
const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
int gpu_host_id) {
TRACE_EVENT0("browser",
"RenderWidgetHostViewMac::AcceleratedSurfacePostSubBuffer");
DCHECK_CURRENTLY_ON(BrowserThread::UI);
IOSurfaceID io_surface_handle =
static_cast<IOSurfaceID>(params.surface_handle);
AddPendingSwapAck(params.route_id,
gpu_host_id,
compositing_iosurface_ ?
compositing_iosurface_->GetRendererID() : 0);
CompositorSwapBuffers(io_surface_handle,
params.surface_size,
params.surface_scale_factor,
params.latency_info);
}
void RenderWidgetHostViewMac::AcceleratedSurfaceSuspend() {
if (compositing_iosurface_)
compositing_iosurface_->UnrefIOSurface();
}
void RenderWidgetHostViewMac::AcceleratedSurfaceRelease() {
DestroyCompositedIOSurfaceAndLayer();
}
bool RenderWidgetHostViewMac::HasAcceleratedSurface(
const gfx::Size& desired_size) {
if (compositing_iosurface_) {
return compositing_iosurface_->HasIOSurface() &&
(desired_size.IsEmpty() ||
compositing_iosurface_->dip_io_surface_size() == desired_size);
}
if (software_frame_manager_->HasCurrentFrame()) {
return (desired_size.IsEmpty() ||
software_frame_manager_->GetCurrentFrameSizeInDIP() ==
desired_size);
}
return false;
}
void RenderWidgetHostViewMac::OnSwapCompositorFrame(
uint32 output_surface_id, scoped_ptr<cc::CompositorFrame> frame) {
TRACE_EVENT0("browser", "RenderWidgetHostViewMac::OnSwapCompositorFrame");
if (frame->delegated_frame_data) {
if (!browser_compositor_view_) {
browser_compositor_view_.reset(
[[BrowserCompositorViewMac alloc] initWithSuperview:cocoa_view_]);
root_layer_.reset(new ui::Layer(ui::LAYER_TEXTURED));
delegated_frame_host_.reset(new DelegatedFrameHost(this));
[browser_compositor_view_ compositor]->SetRootLayer(root_layer_.get());
}
float scale_factor = frame->metadata.device_scale_factor;
gfx::Size dip_size = ToCeiledSize(frame->metadata.viewport_size);
gfx::Size pixel_size = ConvertSizeToPixel(
scale_factor, dip_size);
[browser_compositor_view_ compositor]->SetScaleAndSize(
scale_factor, pixel_size);
root_layer_->SetBounds(gfx::Rect(dip_size));
delegated_frame_host_->SwapDelegatedFrame(
output_surface_id,
frame->delegated_frame_data.Pass(),
frame->metadata.device_scale_factor,
frame->metadata.latency_info);
} else if (frame->software_frame_data) {
if (!software_frame_manager_->SwapToNewFrame(
output_surface_id,
frame->software_frame_data.get(),
frame->metadata.device_scale_factor,
render_widget_host_->GetProcess()->GetHandle())) {
render_widget_host_->GetProcess()->ReceivedBadMessage();
return;
}
// Add latency info to report when the frame finishes drawing.
AddPendingLatencyInfo(frame->metadata.latency_info);
const void* pixels = software_frame_manager_->GetCurrentFramePixels();
gfx::Size size_in_pixels =
software_frame_manager_->GetCurrentFrameSizeInPixels();
EnsureSoftwareLayer();
[software_layer_ setContentsToData:pixels
withRowBytes:4 * size_in_pixels.width()
withPixelSize:size_in_pixels
withScaleFactor:frame->metadata.device_scale_factor];
// Send latency information to the host immediately, as there will be no
// subsequent draw call in which to do so.
SendPendingLatencyInfoToHost();
GotSoftwareFrame();
cc::CompositorFrameAck ack;
RenderWidgetHostImpl::SendSwapCompositorFrameAck(
render_widget_host_->GetRoutingID(),
software_frame_manager_->GetCurrentFrameOutputSurfaceId(),
render_widget_host_->GetProcess()->GetID(),
ack);
software_frame_manager_->SwapToNewFrameComplete(
!render_widget_host_->is_hidden());
// Notify observers, tab capture observers in particular, that a new
// software frame has come in.
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_HOST_DID_UPDATE_BACKING_STORE,
Source<RenderWidgetHost>(render_widget_host_),
NotificationService::NoDetails());
} else {
DLOG(ERROR) << "Received unexpected frame type.";
RecordAction(
base::UserMetricsAction("BadMessageTerminate_UnexpectedFrameType"));
render_widget_host_->GetProcess()->ReceivedBadMessage();
}
}
void RenderWidgetHostViewMac::AcceleratedSurfaceInitialized(int host_id,
int route_id) {
}
void RenderWidgetHostViewMac::GetScreenInfo(blink::WebScreenInfo* results) {
*results = GetWebScreenInfo(GetNativeView());
}
gfx::Rect RenderWidgetHostViewMac::GetBoundsInRootWindow() {
// TODO(shess): In case of !window, the view has been removed from
// the view hierarchy because the tab isn't main. Could retrieve
// the information from the main tab for our window.
NSWindow* enclosing_window = ApparentWindowForView(cocoa_view_);
if (!enclosing_window)
return gfx::Rect();
NSRect bounds = [enclosing_window frame];
return FlipNSRectToRectScreen(bounds);
}
gfx::GLSurfaceHandle RenderWidgetHostViewMac::GetCompositingSurface() {
// TODO(kbr): may be able to eliminate PluginWindowHandle argument
// completely on Mac OS.
return gfx::GLSurfaceHandle(gfx::kNullPluginWindow, gfx::NATIVE_TRANSPORT);
}
bool RenderWidgetHostViewMac::LockMouse() {
if (mouse_locked_)
return true;
mouse_locked_ = true;
// Lock position of mouse cursor and hide it.
CGAssociateMouseAndMouseCursorPosition(NO);
[NSCursor hide];
// Clear the tooltip window.
SetTooltipText(base::string16());
return true;
}
void RenderWidgetHostViewMac::UnlockMouse() {
if (!mouse_locked_)
return;
mouse_locked_ = false;
// Unlock position of mouse cursor and unhide it.
CGAssociateMouseAndMouseCursorPosition(YES);
[NSCursor unhide];
if (render_widget_host_)
render_widget_host_->LostMouseLock();
}
void RenderWidgetHostViewMac::WheelEventAck(
const blink::WebMouseWheelEvent& event,
InputEventAckState ack_result) {
bool consumed = ack_result == INPUT_EVENT_ACK_STATE_CONSUMED;
// Only record a wheel event as unhandled if JavaScript handlers got a chance
// to see it (no-op wheel events are ignored by the event dispatcher)
if (event.deltaX || event.deltaY)
[cocoa_view_ processedWheelEvent:event consumed:consumed];
}
bool RenderWidgetHostViewMac::Send(IPC::Message* message) {
if (render_widget_host_)
return render_widget_host_->Send(message);
delete message;
return false;
}
void RenderWidgetHostViewMac::SoftwareFrameWasFreed(
uint32 output_surface_id, unsigned frame_id) {
if (!render_widget_host_)
return;
cc::CompositorFrameAck ack;
ack.last_software_frame_id = frame_id;
RenderWidgetHostImpl::SendReclaimCompositorResources(
render_widget_host_->GetRoutingID(),
output_surface_id,
render_widget_host_->GetProcess()->GetID(),
ack);
}
void RenderWidgetHostViewMac::ReleaseReferencesToSoftwareFrame() {
DestroySoftwareLayer();
}
void RenderWidgetHostViewMac::ShutdownHost() {
weak_factory_.InvalidateWeakPtrs();
render_widget_host_->Shutdown();
// Do not touch any members at this point, |this| has been deleted.
}
void RenderWidgetHostViewMac::GotAcceleratedFrame() {
EnsureCompositedIOSurfaceLayer();
SendVSyncParametersToRenderer();
// Delete software backingstore and layer.
software_frame_manager_->DiscardCurrentFrame();
DestroySoftwareLayer();
}
void RenderWidgetHostViewMac::GotSoftwareFrame() {
TRACE_EVENT0("browser", "RenderWidgetHostViewMac::GotSoftwareFrame");
if (!render_widget_host_)
return;
EnsureSoftwareLayer();
LayoutLayers();
SendVSyncParametersToRenderer();
// Draw the contents of the frame immediately. It is critical that this
// happen before the frame be acked, otherwise the new frame will likely be
// ready before the drawing is complete, thrashing the browser main thread.
[software_layer_ displayIfNeeded];
DestroyCompositedIOSurfaceAndLayer();
}
void RenderWidgetHostViewMac::SetActive(bool active) {
if (render_widget_host_) {
render_widget_host_->SetActive(active);
if (active) {
if (HasFocus())
render_widget_host_->Focus();
} else {
render_widget_host_->Blur();
}
}
if (HasFocus())
SetTextInputActive(active);
if (!active) {
[cocoa_view_ setPluginImeActive:NO];
UnlockMouse();
}
}
void RenderWidgetHostViewMac::SetWindowVisibility(bool visible) {
if (render_widget_host_) {
render_widget_host_->Send(new ViewMsg_SetWindowVisibility(
render_widget_host_->GetRoutingID(), visible));
}
}
void RenderWidgetHostViewMac::WindowFrameChanged() {
if (render_widget_host_) {
render_widget_host_->Send(new ViewMsg_WindowFrameChanged(
render_widget_host_->GetRoutingID(), GetBoundsInRootWindow(),
GetViewBounds()));
}
}
void RenderWidgetHostViewMac::ShowDefinitionForSelection() {
RenderWidgetHostViewMacDictionaryHelper helper(this);
helper.ShowDefinitionForSelection();
}
void RenderWidgetHostViewMac::SetBackgroundOpaque(bool opaque) {
RenderWidgetHostViewBase::SetBackgroundOpaque(opaque);
if (render_widget_host_)
render_widget_host_->SetBackgroundOpaque(opaque);
}
void RenderWidgetHostViewMac::CreateBrowserAccessibilityManagerIfNeeded() {
if (!GetBrowserAccessibilityManager()) {
SetBrowserAccessibilityManager(
new BrowserAccessibilityManagerMac(
cocoa_view_,
BrowserAccessibilityManagerMac::GetEmptyDocument(),
render_widget_host_));
}
}
gfx::Point RenderWidgetHostViewMac::AccessibilityOriginInScreen(
const gfx::Rect& bounds) {
NSPoint origin = NSMakePoint(bounds.x(), bounds.y());
NSSize size = NSMakeSize(bounds.width(), bounds.height());
origin.y = NSHeight([cocoa_view_ bounds]) - origin.y;
NSPoint originInWindow = [cocoa_view_ convertPoint:origin toView:nil];
NSPoint originInScreen =
[[cocoa_view_ window] convertBaseToScreen:originInWindow];
originInScreen.y = originInScreen.y - size.height;
return gfx::Point(originInScreen.x, originInScreen.y);
}
void RenderWidgetHostViewMac::OnAccessibilitySetFocus(int accObjId) {
// Immediately set the focused item even though we have not officially set
// focus on it as VoiceOver expects to get the focused item after this
// method returns.
BrowserAccessibilityManager* manager = GetBrowserAccessibilityManager();
if (manager)
manager->SetFocus(manager->GetFromID(accObjId), false);
}
void RenderWidgetHostViewMac::AccessibilityShowMenu(int accObjId) {
BrowserAccessibilityManager* manager = GetBrowserAccessibilityManager();
if (!manager)
return;
BrowserAccessibilityCocoa* obj =
manager->GetFromID(accObjId)->ToBrowserAccessibilityCocoa();
// Performs a right click copying WebKit's
// accessibilityPerformShowMenuAction.
NSPoint objOrigin = [obj origin];
NSSize size = [[obj size] sizeValue];
gfx::Point origin = AccessibilityOriginInScreen(
gfx::Rect(objOrigin.x, objOrigin.y, size.width, size.height));
NSPoint location = NSMakePoint(origin.x(), origin.y());
location = [[cocoa_view_ window] convertScreenToBase:location];
location.x += size.width/2;
location.y += size.height/2;
NSEvent* fakeRightClick = [NSEvent
mouseEventWithType:NSRightMouseDown
location:location
modifierFlags:0
timestamp:0
windowNumber:[[cocoa_view_ window] windowNumber]
context:[NSGraphicsContext currentContext]
eventNumber:0
clickCount:1
pressure:0];
[cocoa_view_ mouseEvent:fakeRightClick];
}
void RenderWidgetHostViewMac::SetTextInputActive(bool active) {
if (active) {
if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD)
EnablePasswordInput();
else
DisablePasswordInput();
} else {
if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD)
DisablePasswordInput();
}
}
void RenderWidgetHostViewMac::OnPluginFocusChanged(bool focused,
int plugin_id) {
[cocoa_view_ pluginFocusChanged:(focused ? YES : NO) forPlugin:plugin_id];
}
void RenderWidgetHostViewMac::OnStartPluginIme() {
[cocoa_view_ setPluginImeActive:YES];
}
gfx::Rect RenderWidgetHostViewMac::GetScaledOpenGLPixelRect(
const gfx::Rect& rect) {
gfx::Rect src_gl_subrect = rect;
src_gl_subrect.set_y(GetViewBounds().height() - rect.bottom());
return gfx::ToEnclosingRect(gfx::ScaleRect(src_gl_subrect,
ViewScaleFactor()));
}
void RenderWidgetHostViewMac::AddPendingLatencyInfo(
const std::vector<ui::LatencyInfo>& latency_info) {
// If a screenshot is being taken when using CoreAnimation, send a few extra
// calls to setNeedsDisplay and wait for their resulting display calls,
// before reporting that the frame has reached the screen.
bool should_defer = false;
for (size_t i = 0; i < latency_info.size(); i++) {
if (latency_info[i].FindLatency(
ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
render_widget_host_->GetLatencyComponentId(),
NULL)) {
should_defer = true;
}
}
if (should_defer) {
// Multiple pending screenshot requests will work, but if every frame
// requests a screenshot, then the delay will never expire. Assert this
// here to avoid this.
CHECK_EQ(pending_latency_info_delay_, 0u);
// Wait a fixed number of frames (calls to CALayer::display) before
// claiming that the screenshot has reached the screen. This number
// comes from taking the first number where tests didn't fail (six),
// and doubling it.
const uint32 kScreenshotLatencyDelayInFrames = 12;
pending_latency_info_delay_ = kScreenshotLatencyDelayInFrames;
TickPendingLatencyInfoDelay();
}
for (size_t i = 0; i < latency_info.size(); i++) {
pending_latency_info_.push_back(latency_info[i]);
}
}
void RenderWidgetHostViewMac::SendPendingLatencyInfoToHost() {
if (pending_latency_info_delay_) {
pending_latency_info_delay_ -= 1;
return;
}
pending_latency_info_delay_weak_ptr_factory_.InvalidateWeakPtrs();
for (size_t i = 0; i < pending_latency_info_.size(); i++) {
pending_latency_info_[i].AddLatencyNumber(
ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0);
render_widget_host_->FrameSwapped(pending_latency_info_[i]);
}
pending_latency_info_.clear();
}
void RenderWidgetHostViewMac::TickPendingLatencyInfoDelay() {
if (compositing_iosurface_layer_) {
// Keep calling gotNewFrame in a loop until enough display calls come in.
// Each call will be separated by about a vsync.
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&RenderWidgetHostViewMac::TickPendingLatencyInfoDelay,
pending_latency_info_delay_weak_ptr_factory_.GetWeakPtr()));
[compositing_iosurface_layer_ gotNewFrame];
}
if (software_layer_) {
// In software mode there is not an explicit setNeedsDisplay/display loop,
// so just wait a pretend-vsync at 60 Hz.
base::MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&RenderWidgetHostViewMac::TickPendingLatencyInfoDelay,
pending_latency_info_delay_weak_ptr_factory_.GetWeakPtr()),
base::TimeDelta::FromMilliseconds(1000/60));
SendPendingLatencyInfoToHost();
}
}
void RenderWidgetHostViewMac::AddPendingSwapAck(
int32 route_id, int gpu_host_id, int32 renderer_id) {
// Note that multiple un-acked swaps can come in the event of a GPU process
// loss. Drop the old acks.
pending_swap_ack_.reset(new PendingSwapAck(
route_id, gpu_host_id, renderer_id));
}
void RenderWidgetHostViewMac::SendPendingSwapAck() {
if (!pending_swap_ack_)
return;
AcceleratedSurfaceMsg_BufferPresented_Params ack_params;
ack_params.sync_point = 0;
ack_params.renderer_id = pending_swap_ack_->renderer_id;
RenderWidgetHostImpl::AcknowledgeBufferPresent(pending_swap_ack_->route_id,
pending_swap_ack_->gpu_host_id,
ack_params);
pending_swap_ack_.reset();
}
void RenderWidgetHostViewMac::PauseForPendingResizeOrRepaintsAndDraw() {
if (!render_widget_host_ || render_widget_host_->is_hidden())
return;
// Pausing for the overlay/underlay view prevents the other one from receiving
// frames. This may lead to large delays, causing overlaps.
// See crbug.com/352020.
if (underlay_view_ || overlay_view_)
return;
// Ensure that all frames are acked before waiting for a frame to come in.
// Note that we will draw a frame at the end of this function, so it is safe
// to ack a never-drawn frame here.
SendPendingSwapAck();
// Wait for a frame of the right size to come in.
render_widget_host_->PauseForPendingResizeOrRepaints();
// Immediately draw any frames that haven't been drawn yet. This is necessary
// to keep the window and the window's contents in sync.
[cocoa_view_ displayIfNeeded];
[software_layer_ displayIfNeeded];
[compositing_iosurface_layer_ displayIfNeeded];
}
void RenderWidgetHostViewMac::LayoutLayers() {
if (browser_compositor_view_) {
[browser_compositor_view_ layoutLayers];
return;
}
// Disable animation of the layer's resizing or change in contents scale.
ScopedCAActionDisabler disabler;
CGRect new_background_frame = NSRectToCGRect([cocoa_view() bounds]);
// Dynamically calling setContentsScale on a CAOpenGLLayer for which
// setAsynchronous is dynamically toggled can result in flashes of corrupt
// content. Work around this by replacing the entire layer when the scale
// factor changes.
if (compositing_iosurface_ &&
[compositing_iosurface_layer_
respondsToSelector:(@selector(contentsScale))]) {
if (compositing_iosurface_->scale_factor() !=
[compositing_iosurface_layer_ contentsScale]) {
DestroyCompositedIOSurfaceLayer(kRemoveLayerFromHierarchy);
EnsureCompositedIOSurfaceLayer();
}
}
if (compositing_iosurface_ &&
compositing_iosurface_->HasIOSurface() &&
compositing_iosurface_layer_) {
CGRect layer_bounds = CGRectMake(
0,
0,
compositing_iosurface_->dip_io_surface_size().width(),
compositing_iosurface_->dip_io_surface_size().height());
CGPoint layer_position = CGPointMake(
0,
CGRectGetHeight(new_background_frame) - CGRectGetHeight(layer_bounds));
bool bounds_changed = !CGRectEqualToRect(
layer_bounds, [compositing_iosurface_layer_ bounds]);
[compositing_iosurface_layer_ setPosition:layer_position];
[compositing_iosurface_layer_ setBounds:layer_bounds];
// If the bounds changed, then draw the frame immediately, to ensure that
// content displayed is in sync with the window size.
if (bounds_changed) {
// Also, sometimes, especially when infobars are being removed, the
// setNeedsDisplay calls are dropped on the floor, and stale content is
// displayed. Calling displayIfNeeded will ensure that the right size
// frame is drawn to the screen.
// http://crbug.com/350817
[compositing_iosurface_layer_ setNeedsDisplay];
[compositing_iosurface_layer_ displayIfNeeded];
}
}
// Changing the software layer's bounds and position doesn't always result
// in the layer being anchored to the top-left. Set the layer's frame
// explicitly, since this is more reliable in practice.
if (software_layer_) {
bool frame_changed = !CGRectEqualToRect(
new_background_frame, [software_layer_ frame]);
if (frame_changed) {
[software_layer_ setFrame:new_background_frame];
}
}
}
SkBitmap::Config RenderWidgetHostViewMac::PreferredReadbackFormat() {
return SkBitmap::kARGB_8888_Config;
}
////////////////////////////////////////////////////////////////////////////////
// CompositingIOSurfaceLayerClient, public:
void RenderWidgetHostViewMac::AcceleratedLayerDidDrawFrame(bool succeeded) {
if (!render_widget_host_)
return;
SendPendingLatencyInfoToHost();
SendPendingSwapAck();
if (!succeeded)
GotAcceleratedCompositingError();
}
} // namespace content
// RenderWidgetHostViewCocoa ---------------------------------------------------
@implementation RenderWidgetHostViewCocoa
@synthesize selectedRange = selectedRange_;
@synthesize suppressNextEscapeKeyUp = suppressNextEscapeKeyUp_;
@synthesize markedRange = markedRange_;
- (id)initWithRenderWidgetHostViewMac:(RenderWidgetHostViewMac*)r {
self = [super initWithFrame:NSZeroRect];
if (self) {
self.acceptsTouchEvents = YES;
editCommand_helper_.reset(new RenderWidgetHostViewMacEditCommandHelper);
editCommand_helper_->AddEditingSelectorsToClass([self class]);
renderWidgetHostView_.reset(r);
canBeKeyView_ = YES;
focusedPluginIdentifier_ = -1;
renderWidgetHostView_->backing_store_scale_factor_ =
ui::GetScaleFactorForNativeView(self);
// OpenGL support:
if ([self respondsToSelector:
@selector(setWantsBestResolutionOpenGLSurface:)]) {
[self setWantsBestResolutionOpenGLSurface:YES];
}
handlingGlobalFrameDidChange_ = NO;
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(didChangeScreenParameters:)
name:NSApplicationDidChangeScreenParametersNotification
object:nil];
}
return self;
}
- (void)dealloc {
// Unbind the GL context from this view. If this is not done before super's
// dealloc is called then the GL context will crash when it reaches into
// the view in its destructor.
// http://crbug.com/255608
if (renderWidgetHostView_)
renderWidgetHostView_->AcceleratedSurfaceRelease();
if (responderDelegate_ &&
[responderDelegate_ respondsToSelector:@selector(viewGone:)])
[responderDelegate_ viewGone:self];
responderDelegate_.reset();
[[NSNotificationCenter defaultCenter] removeObserver:self];
[super dealloc];
}
- (void)didChangeScreenParameters:(NSNotification*)notify {
g_screen_info_up_to_date = false;
}
- (void)setResponderDelegate:
(NSObject<RenderWidgetHostViewMacDelegate>*)delegate {
DCHECK(!responderDelegate_);
responderDelegate_.reset([delegate retain]);
}
- (void)resetCursorRects {
if (currentCursor_) {
[self addCursorRect:[self visibleRect] cursor:currentCursor_];
[currentCursor_ setOnMouseEntered:YES];
}
}
- (void)processedWheelEvent:(const blink::WebMouseWheelEvent&)event
consumed:(BOOL)consumed {
[responderDelegate_ rendererHandledWheelEvent:event consumed:consumed];
}
- (BOOL)respondsToSelector:(SEL)selector {
// Trickiness: this doesn't mean "does this object's superclass respond to
// this selector" but rather "does the -respondsToSelector impl from the
// superclass say that this class responds to the selector".
if ([super respondsToSelector:selector])
return YES;
if (responderDelegate_)
return [responderDelegate_ respondsToSelector:selector];
return NO;
}
- (id)forwardingTargetForSelector:(SEL)selector {
if ([responderDelegate_ respondsToSelector:selector])
return responderDelegate_.get();
return [super forwardingTargetForSelector:selector];
}
- (void)setCanBeKeyView:(BOOL)can {
canBeKeyView_ = can;
}
- (BOOL)acceptsMouseEventsWhenInactive {
// Some types of windows (balloons, always-on-top panels) want to accept mouse
// clicks w/o the first click being treated as 'activation'. Same applies to
// mouse move events.
return [[self window] level] > NSNormalWindowLevel;
}
- (BOOL)acceptsFirstMouse:(NSEvent*)theEvent {
return [self acceptsMouseEventsWhenInactive];
}
- (void)setTakesFocusOnlyOnMouseDown:(BOOL)b {
takesFocusOnlyOnMouseDown_ = b;
}
- (void)setCloseOnDeactivate:(BOOL)b {
closeOnDeactivate_ = b;
}
- (BOOL)shouldIgnoreMouseEvent:(NSEvent*)theEvent {
NSWindow* window = [self window];
// If this is a background window, don't handle mouse movement events. This
// is the expected behavior on the Mac as evidenced by other applications.
if ([theEvent type] == NSMouseMoved &&
![self acceptsMouseEventsWhenInactive] &&
![window isKeyWindow]) {
return YES;
}
// Use hitTest to check whether the mouse is over a nonWebContentView - in
// which case the mouse event should not be handled by the render host.
const SEL nonWebContentViewSelector = @selector(nonWebContentView);
NSView* contentView = [window contentView];
NSView* view = [contentView hitTest:[theEvent locationInWindow]];
// Traverse the superview hierarchy as the hitTest will return the frontmost
// view, such as an NSTextView, while nonWebContentView may be specified by
// its parent view.
while (view) {
if ([view respondsToSelector:nonWebContentViewSelector] &&
[view performSelector:nonWebContentViewSelector]) {
// The cursor is over a nonWebContentView - ignore this mouse event.
return YES;
}
if ([view isKindOfClass:[self class]] && ![view isEqual:self] &&
!hasOpenMouseDown_) {
// The cursor is over an overlapping render widget. This check is done by
// both views so the one that's returned by -hitTest: will end up
// processing the event.
// Note that while dragging, we only get events for the render view where
// drag started, even if mouse is actually over another view or outside
// the window. Cocoa does this for us. We should handle these events and
// not ignore (since there is no other render view to handle them). Thus
// the |!hasOpenMouseDown_| check above.
return YES;
}
view = [view superview];
}
return NO;
}
- (void)mouseEvent:(NSEvent*)theEvent {
TRACE_EVENT0("browser", "RenderWidgetHostViewCocoa::mouseEvent");
if (responderDelegate_ &&
[responderDelegate_ respondsToSelector:@selector(handleEvent:)]) {
BOOL handled = [responderDelegate_ handleEvent:theEvent];
if (handled)
return;
}
if ([self shouldIgnoreMouseEvent:theEvent]) {
// If this is the first such event, send a mouse exit to the host view.
if (!mouseEventWasIgnored_ && renderWidgetHostView_->render_widget_host_) {
WebMouseEvent exitEvent =
WebInputEventFactory::mouseEvent(theEvent, self);
exitEvent.type = WebInputEvent::MouseLeave;
exitEvent.button = WebMouseEvent::ButtonNone;
renderWidgetHostView_->ForwardMouseEvent(exitEvent);
}
mouseEventWasIgnored_ = YES;
return;
}
if (mouseEventWasIgnored_) {
// If this is the first mouse event after a previous event that was ignored
// due to the hitTest, send a mouse enter event to the host view.
if (renderWidgetHostView_->render_widget_host_) {
WebMouseEvent enterEvent =
WebInputEventFactory::mouseEvent(theEvent, self);
enterEvent.type = WebInputEvent::MouseMove;
enterEvent.button = WebMouseEvent::ButtonNone;
renderWidgetHostView_->ForwardMouseEvent(enterEvent);
}
}
mouseEventWasIgnored_ = NO;
// TODO(rohitrao): Probably need to handle other mouse down events here.
if ([theEvent type] == NSLeftMouseDown && takesFocusOnlyOnMouseDown_) {
if (renderWidgetHostView_->render_widget_host_)
renderWidgetHostView_->render_widget_host_->OnPointerEventActivate();
// Manually take focus after the click but before forwarding it to the
// renderer.
[[self window] makeFirstResponder:self];
}
// Don't cancel child popups; killing them on a mouse click would prevent the
// user from positioning the insertion point in the text field spawning the
// popup. A click outside the text field would cause the text field to drop
// the focus, and then EditorClientImpl::textFieldDidEndEditing() would cancel
// the popup anyway, so we're OK.
NSEventType type = [theEvent type];
if (type == NSLeftMouseDown)
hasOpenMouseDown_ = YES;
else if (type == NSLeftMouseUp)
hasOpenMouseDown_ = NO;
// TODO(suzhe): We should send mouse events to the input method first if it
// wants to handle them. But it won't work without implementing method
// - (NSUInteger)characterIndexForPoint:.
// See: http://code.google.com/p/chromium/issues/detail?id=47141
// Instead of sending mouse events to the input method first, we now just
// simply confirm all ongoing composition here.
if (type == NSLeftMouseDown || type == NSRightMouseDown ||
type == NSOtherMouseDown) {
[self confirmComposition];
}
const WebMouseEvent event =
WebInputEventFactory::mouseEvent(theEvent, self);
renderWidgetHostView_->ForwardMouseEvent(event);
}
- (BOOL)performKeyEquivalent:(NSEvent*)theEvent {
// |performKeyEquivalent:| is sent to all views of a window, not only down the
// responder chain (cf. "Handling Key Equivalents" in
// http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/EventOverview/HandlingKeyEvents/HandlingKeyEvents.html
// ). We only want to handle key equivalents if we're first responder.
if ([[self window] firstResponder] != self)
return NO;
// If we return |NO| from this function, cocoa will send the key event to
// the menu and only if the menu does not process the event to |keyDown:|. We
// want to send the event to a renderer _before_ sending it to the menu, so
// we need to return |YES| for all events that might be swallowed by the menu.
// We do not return |YES| for every keypress because we don't get |keyDown:|
// events for keys that we handle this way.
NSUInteger modifierFlags = [theEvent modifierFlags];
if ((modifierFlags & NSCommandKeyMask) == 0) {
// Make sure the menu does not contain key equivalents that don't
// contain cmd.
DCHECK(![[NSApp mainMenu] performKeyEquivalent:theEvent]);
return NO;
}
// Command key combinations are sent via performKeyEquivalent rather than
// keyDown:. We just forward this on and if WebCore doesn't want to handle
// it, we let the WebContentsView figure out how to reinject it.
[self keyEvent:theEvent wasKeyEquivalent:YES];
return YES;
}
- (BOOL)_wantsKeyDownForEvent:(NSEvent*)event {
// This is a SPI that AppKit apparently calls after |performKeyEquivalent:|
// returned NO. If this function returns |YES|, Cocoa sends the event to
// |keyDown:| instead of doing other things with it. Ctrl-tab will be sent
// to us instead of doing key view loop control, ctrl-left/right get handled
// correctly, etc.
// (However, there are still some keys that Cocoa swallows, e.g. the key
// equivalent that Cocoa uses for toggling the input language. In this case,
// that's actually a good thing, though -- see http://crbug.com/26115 .)
return YES;
}
- (EventHandled)keyEvent:(NSEvent*)theEvent {
if (responderDelegate_ &&
[responderDelegate_ respondsToSelector:@selector(handleEvent:)]) {
BOOL handled = [responderDelegate_ handleEvent:theEvent];
if (handled)
return kEventHandled;
}
[self keyEvent:theEvent wasKeyEquivalent:NO];
return kEventHandled;
}
- (void)keyEvent:(NSEvent*)theEvent wasKeyEquivalent:(BOOL)equiv {
TRACE_EVENT0("browser", "RenderWidgetHostViewCocoa::keyEvent");
DCHECK([theEvent type] != NSKeyDown ||
!equiv == !([theEvent modifierFlags] & NSCommandKeyMask));
if ([theEvent type] == NSFlagsChanged) {
// Ignore NSFlagsChanged events from the NumLock and Fn keys as
// Safari does in -[WebHTMLView flagsChanged:] (of "WebHTMLView.mm").
int keyCode = [theEvent keyCode];
if (!keyCode || keyCode == 10 || keyCode == 63)
return;
}
// Don't cancel child popups; the key events are probably what's triggering
// the popup in the first place.
RenderWidgetHostImpl* widgetHost = renderWidgetHostView_->render_widget_host_;
DCHECK(widgetHost);
NativeWebKeyboardEvent event(theEvent);
// Force fullscreen windows to close on Escape so they won't keep the keyboard
// grabbed or be stuck onscreen if the renderer is hanging.
if (event.type == NativeWebKeyboardEvent::RawKeyDown &&
event.windowsKeyCode == ui::VKEY_ESCAPE &&
renderWidgetHostView_->pepper_fullscreen_window()) {
RenderWidgetHostViewMac* parent =
renderWidgetHostView_->fullscreen_parent_host_view();
if (parent)
parent->cocoa_view()->suppressNextEscapeKeyUp_ = YES;
widgetHost->Shutdown();
return;
}
// Suppress the escape key up event if necessary.
if (event.windowsKeyCode == ui::VKEY_ESCAPE && suppressNextEscapeKeyUp_) {
if (event.type == NativeWebKeyboardEvent::KeyUp)
suppressNextEscapeKeyUp_ = NO;
return;
}
// We only handle key down events and just simply forward other events.
if ([theEvent type] != NSKeyDown) {
widgetHost->ForwardKeyboardEvent(event);
// Possibly autohide the cursor.
if ([RenderWidgetHostViewCocoa shouldAutohideCursorForEvent:theEvent])
[NSCursor setHiddenUntilMouseMoves:YES];
return;
}
base::scoped_nsobject<RenderWidgetHostViewCocoa> keepSelfAlive([self retain]);
// Records the current marked text state, so that we can know if the marked
// text was deleted or not after handling the key down event.
BOOL oldHasMarkedText = hasMarkedText_;
// This method should not be called recursively.
DCHECK(!handlingKeyDown_);
// Tells insertText: and doCommandBySelector: that we are handling a key
// down event.
handlingKeyDown_ = YES;
// These variables might be set when handling the keyboard event.
// Clear them here so that we can know whether they have changed afterwards.
textToBeInserted_.clear();
markedText_.clear();
underlines_.clear();
unmarkTextCalled_ = NO;
hasEditCommands_ = NO;
editCommands_.clear();
// Before doing anything with a key down, check to see if plugin IME has been
// cancelled, since the plugin host needs to be informed of that before
// receiving the keydown.
if ([theEvent type] == NSKeyDown)
[self checkForPluginImeCancellation];
// Sends key down events to input method first, then we can decide what should
// be done according to input method's feedback.
// If a plugin is active, bypass this step since events are forwarded directly
// to the plugin IME.
if (focusedPluginIdentifier_ == -1)
[self interpretKeyEvents:[NSArray arrayWithObject:theEvent]];
handlingKeyDown_ = NO;
// Indicates if we should send the key event and corresponding editor commands
// after processing the input method result.
BOOL delayEventUntilAfterImeCompostion = NO;
// To emulate Windows, over-write |event.windowsKeyCode| to VK_PROCESSKEY
// while an input method is composing or inserting a text.
// Gmail checks this code in its onkeydown handler to stop auto-completing
// e-mail addresses while composing a CJK text.
// If the text to be inserted has only one character, then we don't need this
// trick, because we'll send the text as a key press event instead.
if (hasMarkedText_ || oldHasMarkedText || textToBeInserted_.length() > 1) {
NativeWebKeyboardEvent fakeEvent = event;
fakeEvent.windowsKeyCode = 0xE5; // VKEY_PROCESSKEY
fakeEvent.setKeyIdentifierFromWindowsKeyCode();
fakeEvent.skip_in_browser = true;
widgetHost->ForwardKeyboardEvent(fakeEvent);
// If this key event was handled by the input method, but
// -doCommandBySelector: (invoked by the call to -interpretKeyEvents: above)
// enqueued edit commands, then in order to let webkit handle them
// correctly, we need to send the real key event and corresponding edit
// commands after processing the input method result.
// We shouldn't do this if a new marked text was set by the input method,
// otherwise the new marked text might be cancelled by webkit.
if (hasEditCommands_ && !hasMarkedText_)
delayEventUntilAfterImeCompostion = YES;
} else {
if (!editCommands_.empty()) {
widgetHost->Send(new InputMsg_SetEditCommandsForNextKeyEvent(
widgetHost->GetRoutingID(), editCommands_));
}
widgetHost->ForwardKeyboardEvent(event);
}
// Calling ForwardKeyboardEvent() could have destroyed the widget. When the
// widget was destroyed, |renderWidgetHostView_->render_widget_host_| will
// be set to NULL. So we check it here and return immediately if it's NULL.
if (!renderWidgetHostView_->render_widget_host_)
return;
// Then send keypress and/or composition related events.
// If there was a marked text or the text to be inserted is longer than 1
// character, then we send the text by calling ConfirmComposition().
// Otherwise, if the text to be inserted only contains 1 character, then we
// can just send a keypress event which is fabricated by changing the type of
// the keydown event, so that we can retain all necessary informations, such
// as unmodifiedText, etc. And we need to set event.skip_in_browser to true to
// prevent the browser from handling it again.
// Note that, |textToBeInserted_| is a UTF-16 string, but it's fine to only
// handle BMP characters here, as we can always insert non-BMP characters as
// text.
BOOL textInserted = NO;
if (textToBeInserted_.length() >
((hasMarkedText_ || oldHasMarkedText) ? 0u : 1u)) {
widgetHost->ImeConfirmComposition(
textToBeInserted_, gfx::Range::InvalidRange(), false);
textInserted = YES;
}
// Updates or cancels the composition. If some text has been inserted, then
// we don't need to cancel the composition explicitly.
if (hasMarkedText_ && markedText_.length()) {
// Sends the updated marked text to the renderer so it can update the
// composition node in WebKit.
// When marked text is available, |selectedRange_| will be the range being
// selected inside the marked text.
widgetHost->ImeSetComposition(markedText_, underlines_,
selectedRange_.location,
NSMaxRange(selectedRange_));
} else if (oldHasMarkedText && !hasMarkedText_ && !textInserted) {
if (unmarkTextCalled_) {
widgetHost->ImeConfirmComposition(
base::string16(), gfx::Range::InvalidRange(), false);
} else {
widgetHost->ImeCancelComposition();
}
}
// If the key event was handled by the input method but it also generated some
// edit commands, then we need to send the real key event and corresponding
// edit commands here. This usually occurs when the input method wants to
// finish current composition session but still wants the application to
// handle the key event. See http://crbug.com/48161 for reference.
if (delayEventUntilAfterImeCompostion) {
// If |delayEventUntilAfterImeCompostion| is YES, then a fake key down event
// with windowsKeyCode == 0xE5 has already been sent to webkit.
// So before sending the real key down event, we need to send a fake key up
// event to balance it.
NativeWebKeyboardEvent fakeEvent = event;
fakeEvent.type = blink::WebInputEvent::KeyUp;
fakeEvent.skip_in_browser = true;
widgetHost->ForwardKeyboardEvent(fakeEvent);
// Not checking |renderWidgetHostView_->render_widget_host_| here because
// a key event with |skip_in_browser| == true won't be handled by browser,
// thus it won't destroy the widget.
if (!editCommands_.empty()) {
widgetHost->Send(new InputMsg_SetEditCommandsForNextKeyEvent(
widgetHost->GetRoutingID(), editCommands_));
}
widgetHost->ForwardKeyboardEvent(event);
// Calling ForwardKeyboardEvent() could have destroyed the widget. When the
// widget was destroyed, |renderWidgetHostView_->render_widget_host_| will
// be set to NULL. So we check it here and return immediately if it's NULL.
if (!renderWidgetHostView_->render_widget_host_)
return;
}
const NSUInteger kCtrlCmdKeyMask = NSControlKeyMask | NSCommandKeyMask;
// Only send a corresponding key press event if there is no marked text.
if (!hasMarkedText_) {
if (!textInserted && textToBeInserted_.length() == 1) {
// If a single character was inserted, then we just send it as a keypress
// event.
event.type = blink::WebInputEvent::Char;
event.text[0] = textToBeInserted_[0];
event.text[1] = 0;
event.skip_in_browser = true;
widgetHost->ForwardKeyboardEvent(event);
} else if ((!textInserted || delayEventUntilAfterImeCompostion) &&
[[theEvent characters] length] > 0 &&
(([theEvent modifierFlags] & kCtrlCmdKeyMask) ||
(hasEditCommands_ && editCommands_.empty()))) {
// We don't get insertText: calls if ctrl or cmd is down, or the key event
// generates an insert command. So synthesize a keypress event for these
// cases, unless the key event generated any other command.
event.type = blink::WebInputEvent::Char;
event.skip_in_browser = true;
widgetHost->ForwardKeyboardEvent(event);
}
}
// Possibly autohide the cursor.
if ([RenderWidgetHostViewCocoa shouldAutohideCursorForEvent:theEvent])
[NSCursor setHiddenUntilMouseMoves:YES];
}
- (void)shortCircuitScrollWheelEvent:(NSEvent*)event {
DCHECK(base::mac::IsOSLionOrLater());
if ([event phase] != NSEventPhaseEnded &&
[event phase] != NSEventPhaseCancelled) {
return;
}
if (renderWidgetHostView_->render_widget_host_) {
// History-swiping is not possible if the logic reaches this point.
// Allow rubber-banding in both directions.
bool canRubberbandLeft = true;
bool canRubberbandRight = true;
const WebMouseWheelEvent webEvent = WebInputEventFactory::mouseWheelEvent(
event, self, canRubberbandLeft, canRubberbandRight);
renderWidgetHostView_->render_widget_host_->ForwardWheelEvent(webEvent);
}
if (endWheelMonitor_) {
[NSEvent removeMonitor:endWheelMonitor_];
endWheelMonitor_ = nil;
}
}
- (void)beginGestureWithEvent:(NSEvent*)event {
[responderDelegate_ beginGestureWithEvent:event];
}
- (void)endGestureWithEvent:(NSEvent*)event {
[responderDelegate_ endGestureWithEvent:event];
}
- (void)touchesMovedWithEvent:(NSEvent*)event {
[responderDelegate_ touchesMovedWithEvent:event];
}
- (void)touchesBeganWithEvent:(NSEvent*)event {
[responderDelegate_ touchesBeganWithEvent:event];
}
- (void)touchesCancelledWithEvent:(NSEvent*)event {
[responderDelegate_ touchesCancelledWithEvent:event];
}
- (void)touchesEndedWithEvent:(NSEvent*)event {
[responderDelegate_ touchesEndedWithEvent:event];
}
// This is invoked only on 10.8 or newer when the user taps a word using
// three fingers.
- (void)quickLookWithEvent:(NSEvent*)event {
NSPoint point = [self convertPoint:[event locationInWindow] fromView:nil];
TextInputClientMac::GetInstance()->GetStringAtPoint(
renderWidgetHostView_->render_widget_host_,
gfx::Point(point.x, NSHeight([self frame]) - point.y),
^(NSAttributedString* string, NSPoint baselinePoint) {
if (string && [string length] > 0) {
dispatch_async(dispatch_get_main_queue(), ^{
[self showDefinitionForAttributedString:string
atPoint:baselinePoint];
});
}
}
);
}
// This method handles 2 different types of hardware events.
// (Apple does not distinguish between them).
// a. Scrolling the middle wheel of a mouse.
// b. Swiping on the track pad.
//
// This method is responsible for 2 types of behavior:
// a. Scrolling the content of window.
// b. Navigating forwards/backwards in history.
//
// This is a brief description of the logic:
// 1. If the content can be scrolled, scroll the content.
// (This requires a roundtrip to blink to determine whether the content
// can be scrolled.)
// Once this logic is triggered, the navigate logic cannot be triggered
// until the gesture finishes.
// 2. If the user is making a horizontal swipe, start the navigate
// forward/backwards UI.
// Once this logic is triggered, the user can either cancel or complete
// the gesture. If the user completes the gesture, all remaining touches
// are swallowed, and not allowed to scroll the content. If the user
// cancels the gesture, all remaining touches are forwarded to the content
// scroll logic. The user cannot trigger the navigation logic again.
- (void)scrollWheel:(NSEvent*)event {
if (responderDelegate_ &&
[responderDelegate_ respondsToSelector:@selector(handleEvent:)]) {
BOOL handled = [responderDelegate_ handleEvent:event];
if (handled)
return;
}
// Use an NSEvent monitor to listen for the wheel-end end. This ensures that
// the event is received even when the mouse cursor is no longer over the view
// when the scrolling ends (e.g. if the tab was switched). This is necessary
// for ending rubber-banding in such cases.
if (base::mac::IsOSLionOrLater() && [event phase] == NSEventPhaseBegan &&
!endWheelMonitor_) {
endWheelMonitor_ =
[NSEvent addLocalMonitorForEventsMatchingMask:NSScrollWheelMask
handler:^(NSEvent* blockEvent) {
[self shortCircuitScrollWheelEvent:blockEvent];
return blockEvent;
}];
}
// This is responsible for content scrolling!
if (renderWidgetHostView_->render_widget_host_) {
BOOL canRubberbandLeft = [responderDelegate_ canRubberbandLeft:self];
BOOL canRubberbandRight = [responderDelegate_ canRubberbandRight:self];
const WebMouseWheelEvent webEvent = WebInputEventFactory::mouseWheelEvent(
event, self, canRubberbandLeft, canRubberbandRight);
renderWidgetHostView_->render_widget_host_->ForwardWheelEvent(webEvent);
}
}
// Called repeatedly during a pinch gesture, with incremental change values.
- (void)magnifyWithEvent:(NSEvent*)event {
if (renderWidgetHostView_->render_widget_host_) {
// Send a GesturePinchUpdate event.
// Note that we don't attempt to bracket these by GesturePinchBegin/End (or
// GestureSrollBegin/End) as is done for touchscreen. Keeping track of when
// a pinch is active would take a little more work here, and we don't need
// it for anything yet.
const WebGestureEvent& webEvent =
WebInputEventFactory::gestureEvent(event, self);
renderWidgetHostView_->render_widget_host_->ForwardGestureEvent(webEvent);
}
}
- (void)viewWillMoveToWindow:(NSWindow*)newWindow {
NSWindow* oldWindow = [self window];
NSNotificationCenter* notificationCenter =
[NSNotificationCenter defaultCenter];
// Backing property notifications crash on 10.6 when building with the 10.7
// SDK, see http://crbug.com/260595.
static BOOL supportsBackingPropertiesNotification =
SupportsBackingPropertiesChangedNotification();
if (oldWindow) {
if (supportsBackingPropertiesNotification) {
[notificationCenter
removeObserver:self
name:NSWindowDidChangeBackingPropertiesNotification
object:oldWindow];
}
[notificationCenter
removeObserver:self
name:NSWindowDidMoveNotification
object:oldWindow];
[notificationCenter
removeObserver:self
name:NSWindowDidEndLiveResizeNotification
object:oldWindow];
}
if (newWindow) {
if (supportsBackingPropertiesNotification) {
[notificationCenter
addObserver:self
selector:@selector(windowDidChangeBackingProperties:)
name:NSWindowDidChangeBackingPropertiesNotification
object:newWindow];
}
[notificationCenter
addObserver:self
selector:@selector(windowChangedGlobalFrame:)
name:NSWindowDidMoveNotification
object:newWindow];
[notificationCenter
addObserver:self
selector:@selector(windowChangedGlobalFrame:)
name:NSWindowDidEndLiveResizeNotification
object:newWindow];
}
}
- (void)updateScreenProperties{
renderWidgetHostView_->UpdateBackingStoreScaleFactor();
renderWidgetHostView_->UpdateDisplayLink();
}
// http://developer.apple.com/library/mac/#documentation/GraphicsAnimation/Conceptual/HighResolutionOSX/CapturingScreenContents/CapturingScreenContents.html#//apple_ref/doc/uid/TP40012302-CH10-SW4
- (void)windowDidChangeBackingProperties:(NSNotification*)notification {
// Background tabs check if their scale factor or vsync properties changed
// when they are added to a window.
// Allocating a CGLayerRef with the current scale factor immediately from
// this handler doesn't work. Schedule the backing store update on the
// next runloop cycle, then things are read for CGLayerRef allocations to
// work.
[self performSelector:@selector(updateScreenProperties)
withObject:nil
afterDelay:0];
}
- (void)windowChangedGlobalFrame:(NSNotification*)notification {
renderWidgetHostView_->UpdateScreenInfo(
renderWidgetHostView_->GetNativeView());
}
- (void)setFrameSize:(NSSize)newSize {
TRACE_EVENT0("browser", "RenderWidgetHostViewCocoa::setFrameSize");
// NB: -[NSView setFrame:] calls through -setFrameSize:, so overriding
// -setFrame: isn't neccessary.
[super setFrameSize:newSize];
if (!renderWidgetHostView_->render_widget_host_)
return;
// Move the CALayers to their positions in the new view size. Note that
// this will not draw anything because the non-background layers' sizes
// didn't actually change.
renderWidgetHostView_->LayoutLayers();
renderWidgetHostView_->render_widget_host_->SendScreenRects();
renderWidgetHostView_->render_widget_host_->WasResized();
if (renderWidgetHostView_->delegated_frame_host_)
renderWidgetHostView_->delegated_frame_host_->WasResized();
// Wait for the frame that WasResize might have requested. If the view is
// being made visible at a new size, then this call will have no effect
// because the view widget is still hidden, and the pause call in WasShown
// will have this effect for us.
renderWidgetHostView_->PauseForPendingResizeOrRepaintsAndDraw();
}
- (BOOL)canBecomeKeyView {
if (!renderWidgetHostView_->render_widget_host_)
return NO;
return canBeKeyView_;
}
- (BOOL)acceptsFirstResponder {
if (!renderWidgetHostView_->render_widget_host_)
return NO;
return canBeKeyView_ && !takesFocusOnlyOnMouseDown_;
}
- (BOOL)becomeFirstResponder {
if (!renderWidgetHostView_->render_widget_host_)
return NO;
renderWidgetHostView_->render_widget_host_->Focus();
renderWidgetHostView_->render_widget_host_->SetInputMethodActive(true);
renderWidgetHostView_->SetTextInputActive(true);
// Cancel any onging composition text which was left before we lost focus.
// TODO(suzhe): We should do it in -resignFirstResponder: method, but
// somehow that method won't be called when switching among different tabs.
// See http://crbug.com/47209
[self cancelComposition];
NSNumber* direction = [NSNumber numberWithUnsignedInteger:
[[self window] keyViewSelectionDirection]];
NSDictionary* userInfo =
[NSDictionary dictionaryWithObject:direction
forKey:kSelectionDirection];
[[NSNotificationCenter defaultCenter]
postNotificationName:kViewDidBecomeFirstResponder
object:self
userInfo:userInfo];
return YES;
}
- (BOOL)resignFirstResponder {
renderWidgetHostView_->SetTextInputActive(false);
if (!renderWidgetHostView_->render_widget_host_)
return YES;
if (closeOnDeactivate_)
renderWidgetHostView_->KillSelf();
renderWidgetHostView_->render_widget_host_->SetInputMethodActive(false);
renderWidgetHostView_->render_widget_host_->Blur();
// We should cancel any onging composition whenever RWH's Blur() method gets
// called, because in this case, webkit will confirm the ongoing composition
// internally.
[self cancelComposition];
return YES;
}
- (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item {
if (responderDelegate_ &&
[responderDelegate_
respondsToSelector:@selector(validateUserInterfaceItem:
isValidItem:)]) {
BOOL valid;
BOOL known =
[responderDelegate_ validateUserInterfaceItem:item isValidItem:&valid];
if (known)
return valid;
}
SEL action = [item action];
if (action == @selector(stopSpeaking:)) {
return renderWidgetHostView_->render_widget_host_->IsRenderView() &&
renderWidgetHostView_->IsSpeaking();
}
if (action == @selector(startSpeaking:)) {
return renderWidgetHostView_->render_widget_host_->IsRenderView() &&
renderWidgetHostView_->SupportsSpeech();
}
// For now, these actions are always enabled for render view,
// this is sub-optimal.
// TODO(suzhe): Plumb the "can*" methods up from WebCore.
if (action == @selector(undo:) ||
action == @selector(redo:) ||
action == @selector(cut:) ||
action == @selector(copy:) ||
action == @selector(copyToFindPboard:) ||
action == @selector(paste:) ||
action == @selector(pasteAndMatchStyle:)) {
return renderWidgetHostView_->render_widget_host_->IsRenderView();
}
return editCommand_helper_->IsMenuItemEnabled(action, self);
}
- (RenderWidgetHostViewMac*)renderWidgetHostViewMac {
return renderWidgetHostView_.get();
}
// Determine whether we should autohide the cursor (i.e., hide it until mouse
// move) for the given event. Customize here to be more selective about which
// key presses to autohide on.
+ (BOOL)shouldAutohideCursorForEvent:(NSEvent*)event {
return ([event type] == NSKeyDown &&
!([event modifierFlags] & NSCommandKeyMask)) ? YES : NO;
}
- (NSArray *)accessibilityArrayAttributeValues:(NSString *)attribute
index:(NSUInteger)index
maxCount:(NSUInteger)maxCount {
NSArray* fullArray = [self accessibilityAttributeValue:attribute];
NSUInteger totalLength = [fullArray count];
if (index >= totalLength)
return nil;
NSUInteger length = MIN(totalLength - index, maxCount);
return [fullArray subarrayWithRange:NSMakeRange(index, length)];
}
- (NSUInteger)accessibilityArrayAttributeCount:(NSString *)attribute {
NSArray* fullArray = [self accessibilityAttributeValue:attribute];
return [fullArray count];
}
- (id)accessibilityAttributeValue:(NSString *)attribute {
BrowserAccessibilityManager* manager =
renderWidgetHostView_->GetBrowserAccessibilityManager();
// Contents specifies document view of RenderWidgetHostViewCocoa provided by
// BrowserAccessibilityManager. Children includes all subviews in addition to
// contents. Currently we do not have subviews besides the document view.
if (([attribute isEqualToString:NSAccessibilityChildrenAttribute] ||
[attribute isEqualToString:NSAccessibilityContentsAttribute]) &&
manager) {
return [NSArray arrayWithObjects:manager->
GetRoot()->ToBrowserAccessibilityCocoa(), nil];
} else if ([attribute isEqualToString:NSAccessibilityRoleAttribute]) {
return NSAccessibilityScrollAreaRole;
}
id ret = [super accessibilityAttributeValue:attribute];
return ret;
}
- (NSArray*)accessibilityAttributeNames {
NSMutableArray* ret = [[[NSMutableArray alloc] init] autorelease];
[ret addObject:NSAccessibilityContentsAttribute];
[ret addObjectsFromArray:[super accessibilityAttributeNames]];
return ret;
}
- (id)accessibilityHitTest:(NSPoint)point {
if (!renderWidgetHostView_->GetBrowserAccessibilityManager())
return self;
NSPoint pointInWindow = [[self window] convertScreenToBase:point];
NSPoint localPoint = [self convertPoint:pointInWindow fromView:nil];
localPoint.y = NSHeight([self bounds]) - localPoint.y;
BrowserAccessibilityCocoa* root = renderWidgetHostView_->
GetBrowserAccessibilityManager()->
GetRoot()->ToBrowserAccessibilityCocoa();
id obj = [root accessibilityHitTest:localPoint];
return obj;
}
- (BOOL)accessibilityIsIgnored {
return !renderWidgetHostView_->GetBrowserAccessibilityManager();
}
- (NSUInteger)accessibilityGetIndexOf:(id)child {
BrowserAccessibilityManager* manager =
renderWidgetHostView_->GetBrowserAccessibilityManager();
// Only child is root.
if (manager &&
manager->GetRoot()->ToBrowserAccessibilityCocoa() == child) {
return 0;
} else {
return NSNotFound;
}
}
- (id)accessibilityFocusedUIElement {
BrowserAccessibilityManager* manager =
renderWidgetHostView_->GetBrowserAccessibilityManager();
if (manager) {
BrowserAccessibility* focused_item = manager->GetFocus(NULL);
DCHECK(focused_item);
if (focused_item) {
BrowserAccessibilityCocoa* focused_item_cocoa =
focused_item->ToBrowserAccessibilityCocoa();
DCHECK(focused_item_cocoa);
if (focused_item_cocoa)
return focused_item_cocoa;
}
}
return [super accessibilityFocusedUIElement];
}
// Below is the nasty tooltip stuff -- copied from WebKit's WebHTMLView.mm
// with minor modifications for code style and commenting.
//
// The 'public' interface is -setToolTipAtMousePoint:. This differs from
// -setToolTip: in that the updated tooltip takes effect immediately,
// without the user's having to move the mouse out of and back into the view.
//
// Unfortunately, doing this requires sending fake mouseEnter/Exit events to
// the view, which in turn requires overriding some internal tracking-rect
// methods (to keep track of its owner & userdata, which need to be filled out
// in the fake events.) --snej 7/6/09
/*
* Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* (C) 2006, 2007 Graham Dennis (graham.dennis@gmail.com)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Any non-zero value will do, but using something recognizable might help us
// debug some day.
static const NSTrackingRectTag kTrackingRectTag = 0xBADFACE;
// Override of a public NSView method, replacing the inherited functionality.
// See above for rationale.
- (NSTrackingRectTag)addTrackingRect:(NSRect)rect
owner:(id)owner
userData:(void *)data
assumeInside:(BOOL)assumeInside {
DCHECK(trackingRectOwner_ == nil);
trackingRectOwner_ = owner;
trackingRectUserData_ = data;
return kTrackingRectTag;
}
// Override of (apparently) a private NSView method(!) See above for rationale.
- (NSTrackingRectTag)_addTrackingRect:(NSRect)rect
owner:(id)owner
userData:(void *)data
assumeInside:(BOOL)assumeInside
useTrackingNum:(int)tag {
DCHECK(tag == 0 || tag == kTrackingRectTag);
DCHECK(trackingRectOwner_ == nil);
trackingRectOwner_ = owner;
trackingRectUserData_ = data;
return kTrackingRectTag;
}
// Override of (apparently) a private NSView method(!) See above for rationale.
- (void)_addTrackingRects:(NSRect *)rects
owner:(id)owner
userDataList:(void **)userDataList
assumeInsideList:(BOOL *)assumeInsideList
trackingNums:(NSTrackingRectTag *)trackingNums
count:(int)count {
DCHECK(count == 1);
DCHECK(trackingNums[0] == 0 || trackingNums[0] == kTrackingRectTag);
DCHECK(trackingRectOwner_ == nil);
trackingRectOwner_ = owner;
trackingRectUserData_ = userDataList[0];
trackingNums[0] = kTrackingRectTag;
}
// Override of a public NSView method, replacing the inherited functionality.
// See above for rationale.
- (void)removeTrackingRect:(NSTrackingRectTag)tag {
if (tag == 0)
return;
if (tag == kTrackingRectTag) {
trackingRectOwner_ = nil;
return;
}
if (tag == lastToolTipTag_) {
[super removeTrackingRect:tag];
lastToolTipTag_ = 0;
return;
}
// If any other tracking rect is being removed, we don't know how it was
// created and it's possible there's a leak involved (see Radar 3500217).
NOTREACHED();
}
// Override of (apparently) a private NSView method(!)
- (void)_removeTrackingRects:(NSTrackingRectTag *)tags count:(int)count {
for (int i = 0; i < count; ++i) {
int tag = tags[i];
if (tag == 0)
continue;
DCHECK(tag == kTrackingRectTag);
trackingRectOwner_ = nil;
}
}
// Sends a fake NSMouseExited event to the view for its current tracking rect.
- (void)_sendToolTipMouseExited {
// Nothing matters except window, trackingNumber, and userData.
int windowNumber = [[self window] windowNumber];
NSEvent* fakeEvent = [NSEvent enterExitEventWithType:NSMouseExited
location:NSZeroPoint
modifierFlags:0
timestamp:0
windowNumber:windowNumber
context:NULL
eventNumber:0
trackingNumber:kTrackingRectTag
userData:trackingRectUserData_];
[trackingRectOwner_ mouseExited:fakeEvent];
}
// Sends a fake NSMouseEntered event to the view for its current tracking rect.
- (void)_sendToolTipMouseEntered {
// Nothing matters except window, trackingNumber, and userData.
int windowNumber = [[self window] windowNumber];
NSEvent* fakeEvent = [NSEvent enterExitEventWithType:NSMouseEntered
location:NSZeroPoint
modifierFlags:0
timestamp:0
windowNumber:windowNumber
context:NULL
eventNumber:0
trackingNumber:kTrackingRectTag
userData:trackingRectUserData_];
[trackingRectOwner_ mouseEntered:fakeEvent];
}
// Sets the view's current tooltip, to be displayed at the current mouse
// location. (This does not make the tooltip appear -- as usual, it only
// appears after a delay.) Pass null to remove the tooltip.
- (void)setToolTipAtMousePoint:(NSString *)string {
NSString *toolTip = [string length] == 0 ? nil : string;
if ((toolTip && toolTip_ && [toolTip isEqualToString:toolTip_]) ||
(!toolTip && !toolTip_)) {
return;
}
if (toolTip_) {
[self _sendToolTipMouseExited];
}
toolTip_.reset([toolTip copy]);
if (toolTip) {
// See radar 3500217 for why we remove all tooltips
// rather than just the single one we created.
[self removeAllToolTips];
NSRect wideOpenRect = NSMakeRect(-100000, -100000, 200000, 200000);
lastToolTipTag_ = [self addToolTipRect:wideOpenRect
owner:self
userData:NULL];
[self _sendToolTipMouseEntered];
}
}
// NSView calls this to get the text when displaying the tooltip.
- (NSString *)view:(NSView *)view
stringForToolTip:(NSToolTipTag)tag
point:(NSPoint)point
userData:(void *)data {
return [[toolTip_ copy] autorelease];
}
// Below is our NSTextInputClient implementation.
//
// When WebHTMLView receives a NSKeyDown event, WebHTMLView calls the following
// functions to process this event.
//
// [WebHTMLView keyDown] ->
// EventHandler::keyEvent() ->
// ...
// [WebEditorClient handleKeyboardEvent] ->
// [WebHTMLView _interceptEditingKeyEvent] ->
// [NSResponder interpretKeyEvents] ->
// [WebHTMLView insertText] ->
// Editor::insertText()
//
// Unfortunately, it is hard for Chromium to use this implementation because
// it causes key-typing jank.
// RenderWidgetHostViewMac is running in a browser process. On the other
// hand, Editor and EventHandler are running in a renderer process.
// So, if we used this implementation, a NSKeyDown event is dispatched to
// the following functions of Chromium.
//
// [RenderWidgetHostViewMac keyEvent] (browser) ->
// |Sync IPC (KeyDown)| (*1) ->
// EventHandler::keyEvent() (renderer) ->
// ...
// EditorClientImpl::handleKeyboardEvent() (renderer) ->
// |Sync IPC| (*2) ->
// [RenderWidgetHostViewMac _interceptEditingKeyEvent] (browser) ->
// [self interpretKeyEvents] ->
// [RenderWidgetHostViewMac insertText] (browser) ->
// |Async IPC| ->
// Editor::insertText() (renderer)
//
// (*1) we need to wait until this call finishes since WebHTMLView uses the
// result of EventHandler::keyEvent().
// (*2) we need to wait until this call finishes since WebEditorClient uses
// the result of [WebHTMLView _interceptEditingKeyEvent].
//
// This needs many sync IPC messages sent between a browser and a renderer for
// each key event, which would probably result in key-typing jank.
// To avoid this problem, this implementation processes key events (and input
// method events) totally in a browser process and sends asynchronous input
// events, almost same as KeyboardEvents (and TextEvents) of DOM Level 3, to a
// renderer process.
//
// [RenderWidgetHostViewMac keyEvent] (browser) ->
// |Async IPC (RawKeyDown)| ->
// [self interpretKeyEvents] ->
// [RenderWidgetHostViewMac insertText] (browser) ->
// |Async IPC (Char)| ->
// Editor::insertText() (renderer)
//
// Since this implementation doesn't have to wait any IPC calls, this doesn't
// make any key-typing jank. --hbono 7/23/09
//
extern "C" {
extern NSString *NSTextInputReplacementRangeAttributeName;
}
- (NSArray *)validAttributesForMarkedText {
// This code is just copied from WebKit except renaming variables.
if (!validAttributesForMarkedText_) {
validAttributesForMarkedText_.reset([[NSArray alloc] initWithObjects:
NSUnderlineStyleAttributeName,
NSUnderlineColorAttributeName,
NSMarkedClauseSegmentAttributeName,
NSTextInputReplacementRangeAttributeName,
nil]);
}
return validAttributesForMarkedText_.get();
}
- (NSUInteger)characterIndexForPoint:(NSPoint)thePoint {
DCHECK([self window]);
// |thePoint| is in screen coordinates, but needs to be converted to WebKit
// coordinates (upper left origin). Scroll offsets will be taken care of in
// the renderer.
thePoint = [[self window] convertScreenToBase:thePoint];
thePoint = [self convertPoint:thePoint fromView:nil];
thePoint.y = NSHeight([self frame]) - thePoint.y;
NSUInteger index =
TextInputClientMac::GetInstance()->GetCharacterIndexAtPoint(
renderWidgetHostView_->render_widget_host_,
gfx::Point(thePoint.x, thePoint.y));
return index;
}
- (NSRect)firstViewRectForCharacterRange:(NSRange)theRange
actualRange:(NSRangePointer)actualRange {
NSRect rect;
if (!renderWidgetHostView_->GetCachedFirstRectForCharacterRange(
theRange,
&rect,
actualRange)) {
rect = TextInputClientMac::GetInstance()->GetFirstRectForRange(
renderWidgetHostView_->render_widget_host_, theRange);
// TODO(thakis): Pipe |actualRange| through TextInputClientMac machinery.
if (actualRange)
*actualRange = theRange;
}
// The returned rectangle is in WebKit coordinates (upper left origin), so
// flip the coordinate system.
NSRect viewFrame = [self frame];
rect.origin.y = NSHeight(viewFrame) - NSMaxY(rect);
return rect;
}
- (NSRect)firstRectForCharacterRange:(NSRange)theRange
actualRange:(NSRangePointer)actualRange {
NSRect rect = [self firstViewRectForCharacterRange:theRange
actualRange:actualRange];
// Convert into screen coordinates for return.
rect = [self convertRect:rect toView:nil];
rect.origin = [[self window] convertBaseToScreen:rect.origin];
return rect;
}
- (NSRange)markedRange {
// An input method calls this method to check if an application really has
// a text being composed when hasMarkedText call returns true.
// Returns the range saved in the setMarkedText method so the input method
// calls the setMarkedText method and we can update the composition node
// there. (When this method returns an empty range, the input method doesn't
// call the setMarkedText method.)
return hasMarkedText_ ? markedRange_ : NSMakeRange(NSNotFound, 0);
}
- (NSAttributedString*)attributedSubstringForProposedRange:(NSRange)range
actualRange:(NSRangePointer)actualRange {
// TODO(thakis): Pipe |actualRange| through TextInputClientMac machinery.
if (actualRange)
*actualRange = range;
NSAttributedString* str =
TextInputClientMac::GetInstance()->GetAttributedSubstringFromRange(
renderWidgetHostView_->render_widget_host_, range);
return str;
}
- (NSInteger)conversationIdentifier {
return reinterpret_cast<NSInteger>(self);
}
// Each RenderWidgetHostViewCocoa has its own input context, but we return
// nil when the caret is in non-editable content or password box to avoid
// making input methods do their work.
- (NSTextInputContext *)inputContext {
if (focusedPluginIdentifier_ != -1)
return [[ComplexTextInputPanel sharedComplexTextInputPanel] inputContext];
switch(renderWidgetHostView_->text_input_type_) {
case ui::TEXT_INPUT_TYPE_NONE:
case ui::TEXT_INPUT_TYPE_PASSWORD:
return nil;
default:
return [super inputContext];
}
}
- (BOOL)hasMarkedText {
// An input method calls this function to figure out whether or not an
// application is really composing a text. If it is composing, it calls
// the markedRange method, and maybe calls the setMarkedText method.
// It seems an input method usually calls this function when it is about to
// cancel an ongoing composition. If an application has a non-empty marked
// range, it calls the setMarkedText method to delete the range.
return hasMarkedText_;
}
- (void)unmarkText {
// Delete the composition node of the renderer and finish an ongoing
// composition.
// It seems an input method calls the setMarkedText method and set an empty
// text when it cancels an ongoing composition, i.e. I have never seen an
// input method calls this method.
hasMarkedText_ = NO;
markedText_.clear();
underlines_.clear();
// If we are handling a key down event, then ConfirmComposition() will be
// called in keyEvent: method.
if (!handlingKeyDown_) {
renderWidgetHostView_->render_widget_host_->ImeConfirmComposition(
base::string16(), gfx::Range::InvalidRange(), false);
} else {
unmarkTextCalled_ = YES;
}
}
- (void)setMarkedText:(id)string selectedRange:(NSRange)newSelRange
replacementRange:(NSRange)replacementRange {
// An input method updates the composition string.
// We send the given text and range to the renderer so it can update the
// composition node of WebKit.
// TODO(suzhe): It's hard for us to support replacementRange without accessing
// the full web content.
BOOL isAttributedString = [string isKindOfClass:[NSAttributedString class]];
NSString* im_text = isAttributedString ? [string string] : string;
int length = [im_text length];
// |markedRange_| will get set on a callback from ImeSetComposition().
selectedRange_ = newSelRange;
markedText_ = base::SysNSStringToUTF16(im_text);
hasMarkedText_ = (length > 0);
underlines_.clear();
if (isAttributedString) {
ExtractUnderlines(string, &underlines_);
} else {
// Use a thin black underline by default.
underlines_.push_back(blink::WebCompositionUnderline(
0, length, SK_ColorBLACK, false, SK_ColorTRANSPARENT));
}
// If we are handling a key down event, then SetComposition() will be
// called in keyEvent: method.
// Input methods of Mac use setMarkedText calls with an empty text to cancel
// an ongoing composition. So, we should check whether or not the given text
// is empty to update the input method state. (Our input method backend can
// automatically cancels an ongoing composition when we send an empty text.
// So, it is OK to send an empty text to the renderer.)
if (!handlingKeyDown_) {
renderWidgetHostView_->render_widget_host_->ImeSetComposition(
markedText_, underlines_,
newSelRange.location, NSMaxRange(newSelRange));
}
}
- (void)doCommandBySelector:(SEL)selector {
// An input method calls this function to dispatch an editing command to be
// handled by this view.
if (selector == @selector(noop:))
return;
std::string command(
[RenderWidgetHostViewMacEditCommandHelper::
CommandNameForSelector(selector) UTF8String]);
// If this method is called when handling a key down event, then we need to
// handle the command in the key event handler. Otherwise we can just handle
// it here.
if (handlingKeyDown_) {
hasEditCommands_ = YES;
// We ignore commands that insert characters, because this was causing
// strange behavior (e.g. tab always inserted a tab rather than moving to
// the next field on the page).
if (!StartsWithASCII(command, "insert", false))
editCommands_.push_back(EditCommand(command, ""));
} else {
RenderWidgetHostImpl* rwh = renderWidgetHostView_->render_widget_host_;
rwh->Send(new InputMsg_ExecuteEditCommand(rwh->GetRoutingID(),
command, ""));
}
}
- (void)insertText:(id)string replacementRange:(NSRange)replacementRange {
// An input method has characters to be inserted.
// Same as Linux, Mac calls this method not only:
// * when an input method finishs composing text, but also;
// * when we type an ASCII character (without using input methods).
// When we aren't using input methods, we should send the given character as
// a Char event so it is dispatched to an onkeypress() event handler of
// JavaScript.
// On the other hand, when we are using input methods, we should send the
// given characters as an input method event and prevent the characters from
// being dispatched to onkeypress() event handlers.
// Text inserting might be initiated by other source instead of keyboard
// events, such as the Characters dialog. In this case the text should be
// sent as an input method event as well.
// TODO(suzhe): It's hard for us to support replacementRange without accessing
// the full web content.
BOOL isAttributedString = [string isKindOfClass:[NSAttributedString class]];
NSString* im_text = isAttributedString ? [string string] : string;
if (handlingKeyDown_) {
textToBeInserted_.append(base::SysNSStringToUTF16(im_text));
} else {
gfx::Range replacement_range(replacementRange);
renderWidgetHostView_->render_widget_host_->ImeConfirmComposition(
base::SysNSStringToUTF16(im_text), replacement_range, false);
}
// Inserting text will delete all marked text automatically.
hasMarkedText_ = NO;
}
- (void)insertText:(id)string {
[self insertText:string replacementRange:NSMakeRange(NSNotFound, 0)];
}
- (void)viewDidMoveToWindow {
if ([self window])
[self updateScreenProperties];
if (canBeKeyView_) {
NSWindow* newWindow = [self window];
// Pointer comparison only, since we don't know if lastWindow_ is still
// valid.
if (newWindow) {
// If we move into a new window, refresh the frame information. We
// don't need to do it if it was the same window as it used to be in,
// since that case is covered by WasShown(). We only want to do this for
// real browser views, not popups.
if (newWindow != lastWindow_) {
lastWindow_ = newWindow;
renderWidgetHostView_->WindowFrameChanged();
}
}
}
// If we switch windows (or are removed from the view hierarchy), cancel any
// open mouse-downs.
if (hasOpenMouseDown_) {
WebMouseEvent event;
event.type = WebInputEvent::MouseUp;
event.button = WebMouseEvent::ButtonLeft;
renderWidgetHostView_->ForwardMouseEvent(event);
hasOpenMouseDown_ = NO;
}
}
- (void)undo:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->Undo();
}
- (void)redo:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->Redo();
}
- (void)cut:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->Cut();
}
- (void)copy:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->Copy();
}
- (void)copyToFindPboard:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->CopyToFindPboard();
}
- (void)paste:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->Paste();
}
- (void)pasteAndMatchStyle:(id)sender {
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->PasteAndMatchStyle();
}
- (void)selectAll:(id)sender {
// editCommand_helper_ adds implementations for most NSResponder methods
// dynamically. But the renderer side only sends selection results back to
// the browser if they were triggered by a keyboard event or went through
// one of the Select methods on RWH. Since selectAll: is called from the
// menu handler, neither is true.
// Explicitly call SelectAll() here to make sure the renderer returns
// selection results.
WebContents* web_contents = renderWidgetHostView_->GetWebContents();
if (web_contents)
web_contents->SelectAll();
}
- (void)startSpeaking:(id)sender {
renderWidgetHostView_->SpeakSelection();
}
- (void)stopSpeaking:(id)sender {
renderWidgetHostView_->StopSpeaking();
}
- (void)cancelComposition {
if (!hasMarkedText_)
return;
// Cancel the ongoing composition. [NSInputManager markedTextAbandoned:]
// doesn't call any NSTextInput functions, such as setMarkedText or
// insertText. So, we need to send an IPC message to a renderer so it can
// delete the composition node.
NSInputManager *currentInputManager = [NSInputManager currentInputManager];
[currentInputManager markedTextAbandoned:self];
hasMarkedText_ = NO;
// Should not call [self unmarkText] here, because it'll send unnecessary
// cancel composition IPC message to the renderer.
}
- (void)confirmComposition {
if (!hasMarkedText_)
return;
if (renderWidgetHostView_->render_widget_host_)
renderWidgetHostView_->render_widget_host_->ImeConfirmComposition(
base::string16(), gfx::Range::InvalidRange(), false);
[self cancelComposition];
}
- (void)setPluginImeActive:(BOOL)active {
if (active == pluginImeActive_)
return;
pluginImeActive_ = active;
if (!active) {
[[ComplexTextInputPanel sharedComplexTextInputPanel] cancelComposition];
renderWidgetHostView_->PluginImeCompositionCompleted(
base::string16(), focusedPluginIdentifier_);
}
}
- (void)pluginFocusChanged:(BOOL)focused forPlugin:(int)pluginId {
if (focused)
focusedPluginIdentifier_ = pluginId;
else if (focusedPluginIdentifier_ == pluginId)
focusedPluginIdentifier_ = -1;
// Whenever plugin focus changes, plugin IME resets.
[self setPluginImeActive:NO];
}
- (BOOL)postProcessEventForPluginIme:(NSEvent*)event {
if (!pluginImeActive_)
return false;
ComplexTextInputPanel* inputPanel =
[ComplexTextInputPanel sharedComplexTextInputPanel];
NSString* composited_string = nil;
BOOL handled = [inputPanel interpretKeyEvent:event
string:&composited_string];
if (composited_string) {
renderWidgetHostView_->PluginImeCompositionCompleted(
base::SysNSStringToUTF16(composited_string), focusedPluginIdentifier_);
pluginImeActive_ = NO;
}
return handled;
}
- (void)checkForPluginImeCancellation {
if (pluginImeActive_ &&
![[ComplexTextInputPanel sharedComplexTextInputPanel] inComposition]) {
renderWidgetHostView_->PluginImeCompositionCompleted(
base::string16(), focusedPluginIdentifier_);
pluginImeActive_ = NO;
}
}
// Overriding a NSResponder method to support application services.
- (id)validRequestorForSendType:(NSString*)sendType
returnType:(NSString*)returnType {
id requestor = nil;
BOOL sendTypeIsString = [sendType isEqual:NSStringPboardType];
BOOL returnTypeIsString = [returnType isEqual:NSStringPboardType];
BOOL hasText = !renderWidgetHostView_->selected_text().empty();
BOOL takesText =
renderWidgetHostView_->text_input_type_ != ui::TEXT_INPUT_TYPE_NONE;
if (sendTypeIsString && hasText && !returnType) {
requestor = self;
} else if (!sendType && returnTypeIsString && takesText) {
requestor = self;
} else if (sendTypeIsString && returnTypeIsString && hasText && takesText) {
requestor = self;
} else {
requestor = [super validRequestorForSendType:sendType
returnType:returnType];
}
return requestor;
}
- (void)viewWillStartLiveResize {
[super viewWillStartLiveResize];
RenderWidgetHostImpl* widget = renderWidgetHostView_->render_widget_host_;
if (widget)
widget->Send(new ViewMsg_SetInLiveResize(widget->GetRoutingID(), true));
}
- (void)viewDidEndLiveResize {
[super viewDidEndLiveResize];
RenderWidgetHostImpl* widget = renderWidgetHostView_->render_widget_host_;
if (widget)
widget->Send(new ViewMsg_SetInLiveResize(widget->GetRoutingID(), false));
}
- (void)updateCursor:(NSCursor*)cursor {
if (currentCursor_ == cursor)
return;
currentCursor_.reset([cursor retain]);
[[self window] invalidateCursorRectsForView:self];
}
- (void)popupWindowWillClose:(NSNotification *)notification {
renderWidgetHostView_->KillSelf();
}
@end
//
// Supporting application services
//
@implementation RenderWidgetHostViewCocoa(NSServicesRequests)
- (BOOL)writeSelectionToPasteboard:(NSPasteboard*)pboard
types:(NSArray*)types {
const std::string& str = renderWidgetHostView_->selected_text();
if (![types containsObject:NSStringPboardType] || str.empty()) return NO;
base::scoped_nsobject<NSString> text(
[[NSString alloc] initWithUTF8String:str.c_str()]);
NSArray* toDeclare = [NSArray arrayWithObject:NSStringPboardType];
[pboard declareTypes:toDeclare owner:nil];
return [pboard setString:text forType:NSStringPboardType];
}
- (BOOL)readSelectionFromPasteboard:(NSPasteboard*)pboard {
NSString *string = [pboard stringForType:NSStringPboardType];
if (!string) return NO;
// If the user is currently using an IME, confirm the IME input,
// and then insert the text from the service, the same as TextEdit and Safari.
[self confirmComposition];
[self insertText:string];
return YES;
}
- (BOOL)isOpaque {
return YES;
}
// "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
// regions that are not draggable. (See ControlRegionView in
// native_app_window_cocoa.mm). This requires the render host view to be
// draggable by default.
- (BOOL)mouseDownCanMoveWindow {
return YES;
}
@end