| // 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 "chrome/browser/ui/views/find_bar_host.h" |
| |
| #include <algorithm> |
| |
| #include "chrome/browser/ui/find_bar/find_bar_controller.h" |
| #include "chrome/browser/ui/find_bar/find_tab_helper.h" |
| #include "chrome/browser/ui/view_ids.h" |
| #include "chrome/browser/ui/views/find_bar_view.h" |
| #include "chrome/browser/ui/views/frame/browser_view.h" |
| #include "content/public/browser/render_view_host.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/browser/web_contents_view.h" |
| #include "ui/base/events/event.h" |
| #include "ui/base/keycodes/keyboard_codes.h" |
| #include "ui/views/focus/external_focus_tracker.h" |
| #include "ui/views/focus/view_storage.h" |
| #include "ui/views/widget/root_view.h" |
| #include "ui/views/widget/widget.h" |
| |
| using content::NativeWebKeyboardEvent; |
| |
| namespace chrome { |
| |
| // Declared in browser_dialogs.h so others don't have to depend on our header. |
| FindBar* CreateFindBar(BrowserView* browser_view) { |
| return new FindBarHost(browser_view); |
| } |
| |
| } // namespace chrome |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // FindBarHost, public: |
| |
| FindBarHost::FindBarHost(BrowserView* browser_view) |
| : DropdownBarHost(browser_view), |
| find_bar_controller_(NULL) { |
| FindBarView* find_bar_view = new FindBarView(this); |
| Init(browser_view->find_bar_host_view(), find_bar_view, find_bar_view); |
| } |
| |
| FindBarHost::~FindBarHost() { |
| } |
| |
| bool FindBarHost::MaybeForwardKeyEventToWebpage( |
| const ui::KeyEvent& key_event) { |
| if (!ShouldForwardKeyEventToWebpageNative(key_event)) { |
| // Native implementation says not to forward these events. |
| return false; |
| } |
| |
| switch (key_event.key_code()) { |
| case ui::VKEY_DOWN: |
| case ui::VKEY_UP: |
| case ui::VKEY_PRIOR: |
| case ui::VKEY_NEXT: |
| break; |
| case ui::VKEY_HOME: |
| case ui::VKEY_END: |
| if (key_event.IsControlDown()) |
| break; |
| // Fall through. |
| default: |
| return false; |
| } |
| |
| content::WebContents* contents = find_bar_controller_->web_contents(); |
| if (!contents) |
| return false; |
| |
| content::RenderViewHost* render_view_host = contents->GetRenderViewHost(); |
| |
| // Make sure we don't have a text field element interfering with keyboard |
| // input. Otherwise Up and Down arrow key strokes get eaten. "Nom Nom Nom". |
| render_view_host->ClearFocusedNode(); |
| NativeWebKeyboardEvent event = GetKeyboardEvent(contents, key_event); |
| render_view_host->ForwardKeyboardEvent(event); |
| return true; |
| } |
| |
| FindBarController* FindBarHost::GetFindBarController() const { |
| return find_bar_controller_; |
| } |
| |
| void FindBarHost::SetFindBarController(FindBarController* find_bar_controller) { |
| find_bar_controller_ = find_bar_controller; |
| } |
| |
| void FindBarHost::Show(bool animate) { |
| DropdownBarHost::Show(animate); |
| } |
| |
| void FindBarHost::Hide(bool animate) { |
| DropdownBarHost::Hide(animate); |
| } |
| |
| void FindBarHost::SetFocusAndSelection() { |
| DropdownBarHost::SetFocusAndSelection(); |
| } |
| |
| void FindBarHost::ClearResults(const FindNotificationDetails& results) { |
| find_bar_view()->UpdateForResult(results, string16()); |
| } |
| |
| void FindBarHost::StopAnimation() { |
| DropdownBarHost::StopAnimation(); |
| } |
| |
| void FindBarHost::MoveWindowIfNecessary(const gfx::Rect& selection_rect, |
| bool no_redraw) { |
| // We only move the window if one is active for the current WebContents. If we |
| // don't check this, then SetWidgetPosition below will end up making the Find |
| // Bar visible. |
| content::WebContents* web_contents = find_bar_controller_->web_contents(); |
| if (!web_contents) |
| return; |
| |
| FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents(web_contents); |
| if (!find_tab_helper || !find_tab_helper->find_ui_active()) |
| return; |
| |
| gfx::Rect new_pos = GetDialogPosition(selection_rect); |
| SetDialogPosition(new_pos, no_redraw); |
| |
| // May need to redraw our frame to accommodate bookmark bar styles. |
| view()->Layout(); // Bounds may have changed. |
| view()->SchedulePaint(); |
| } |
| |
| void FindBarHost::SetFindText(const string16& find_text) { |
| find_bar_view()->SetFindText(find_text); |
| } |
| |
| void FindBarHost::UpdateUIForFindResult(const FindNotificationDetails& result, |
| const string16& find_text) { |
| // Make sure match count is clear. It may get set again in UpdateForResult |
| // if enough data is available. |
| find_bar_view()->ClearMatchCount(); |
| |
| if (!find_text.empty()) |
| find_bar_view()->UpdateForResult(result, find_text); |
| |
| // We now need to check if the window is obscuring the search results. |
| MoveWindowIfNecessary(result.selection_rect(), false); |
| |
| // Once we find a match we no longer want to keep track of what had |
| // focus. EndFindSession will then set the focus to the page content. |
| if (result.number_of_matches() > 0) |
| ResetFocusTracker(); |
| } |
| |
| bool FindBarHost::IsFindBarVisible() { |
| return DropdownBarHost::IsVisible(); |
| } |
| |
| void FindBarHost::RestoreSavedFocus() { |
| if (focus_tracker() == NULL) { |
| // TODO(brettw): Focus() should be on WebContentsView. |
| find_bar_controller_->web_contents()->GetView()->Focus(); |
| } else { |
| focus_tracker()->FocusLastFocusedExternalView(); |
| } |
| } |
| |
| bool FindBarHost::HasGlobalFindPasteboard() { |
| return false; |
| } |
| |
| void FindBarHost::UpdateFindBarForChangedWebContents() { |
| } |
| |
| FindBarTesting* FindBarHost::GetFindBarTesting() { |
| return this; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // FindBarWin, ui::AcceleratorTarget implementation: |
| |
| bool FindBarHost::AcceleratorPressed(const ui::Accelerator& accelerator) { |
| ui::KeyboardCode key = accelerator.key_code(); |
| if (key == ui::VKEY_RETURN && accelerator.IsCtrlDown()) { |
| // Ctrl+Enter closes the Find session and navigates any link that is active. |
| find_bar_controller_->EndFindSession( |
| FindBarController::kActivateSelectionOnPage, |
| FindBarController::kClearResultsInFindBox); |
| return true; |
| } else if (key == ui::VKEY_ESCAPE) { |
| // This will end the Find session and hide the window, causing it to loose |
| // focus and in the process unregister us as the handler for the Escape |
| // accelerator through the OnWillChangeFocus event. |
| find_bar_controller_->EndFindSession( |
| FindBarController::kKeepSelectionOnPage, |
| FindBarController::kKeepResultsInFindBox); |
| return true; |
| } else { |
| NOTREACHED() << "Unknown accelerator"; |
| } |
| |
| return false; |
| } |
| |
| bool FindBarHost::CanHandleAccelerators() const { |
| return true; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // FindBarTesting implementation: |
| |
| bool FindBarHost::GetFindBarWindowInfo(gfx::Point* position, |
| bool* fully_visible) { |
| if (!find_bar_controller_ || |
| #if defined(OS_WIN) && !defined(USE_AURA) |
| !::IsWindow(host()->GetNativeView())) { |
| #else |
| false) { |
| // TODO(sky): figure out linux side. |
| // This is tricky due to asynchronous nature of x11. |
| // See bug http://crbug.com/28629. |
| #endif |
| if (position) |
| *position = gfx::Point(); |
| if (fully_visible) |
| *fully_visible = false; |
| return false; |
| } |
| |
| gfx::Rect window_rect = host()->GetWindowBoundsInScreen(); |
| if (position) |
| *position = window_rect.origin(); |
| if (fully_visible) |
| *fully_visible = IsVisible() && !IsAnimating(); |
| return true; |
| } |
| |
| string16 FindBarHost::GetFindText() { |
| return find_bar_view()->GetFindText(); |
| } |
| |
| string16 FindBarHost::GetFindSelectedText() { |
| return find_bar_view()->GetFindSelectedText(); |
| } |
| |
| string16 FindBarHost::GetMatchCountText() { |
| return find_bar_view()->GetMatchCountText(); |
| } |
| |
| int FindBarHost::GetWidth() { |
| return view()->width(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Overridden from DropdownBarHost: |
| |
| gfx::Rect FindBarHost::GetDialogPosition(gfx::Rect avoid_overlapping_rect) { |
| // Find the area we have to work with (after accounting for scrollbars, etc). |
| gfx::Rect widget_bounds; |
| GetWidgetBounds(&widget_bounds); |
| if (widget_bounds.IsEmpty()) |
| return gfx::Rect(); |
| |
| // Ask the view how large an area it needs to draw on. |
| gfx::Size prefsize = view()->GetPreferredSize(); |
| |
| // Limit width to the available area. |
| if (widget_bounds.width() < prefsize.width()) |
| prefsize.set_width(widget_bounds.width()); |
| |
| // Don't show the find bar if |widget_bounds| is not tall enough. |
| if (widget_bounds.height() < prefsize.height()) |
| return gfx::Rect(); |
| |
| // Place the view in the top right corner of the widget boundaries (top left |
| // for RTL languages). |
| gfx::Rect view_location; |
| int x = widget_bounds.x(); |
| if (!base::i18n::IsRTL()) |
| x += widget_bounds.width() - prefsize.width(); |
| int y = widget_bounds.y(); |
| view_location.SetRect(x, y, prefsize.width(), prefsize.height()); |
| |
| // When we get Find results back, we specify a selection rect, which we |
| // should strive to avoid overlapping. But first, we need to offset the |
| // selection rect (if one was provided). |
| if (!avoid_overlapping_rect.IsEmpty()) { |
| // For comparison (with the Intersects function below) we need to account |
| // for the fact that we draw the Find widget relative to the Chrome frame, |
| // whereas the selection rect is relative to the page. |
| GetWidgetPositionNative(&avoid_overlapping_rect); |
| } |
| |
| gfx::Rect new_pos = FindBarController::GetLocationForFindbarView( |
| view_location, widget_bounds, avoid_overlapping_rect); |
| |
| // While we are animating, the Find window will grow bottoms up so we need to |
| // re-position the widget so that it appears to grow out of the toolbar. |
| if (animation_offset() > 0) |
| new_pos.Offset(0, std::min(0, -animation_offset())); |
| |
| return new_pos; |
| } |
| |
| void FindBarHost::SetDialogPosition(const gfx::Rect& new_pos, bool no_redraw) { |
| if (new_pos.IsEmpty()) |
| return; |
| |
| // Make sure the window edges are clipped to just the visible region. We need |
| // to do this before changing position, so that when we animate the closure |
| // of it it doesn't look like the window crumbles into the toolbar. |
| UpdateWindowEdges(new_pos); |
| |
| SetWidgetPositionNative(new_pos, no_redraw); |
| |
| // Tell the immersive mode controller about the find bar's new bounds. The |
| // immersive mode controller uses the bounds to keep the top-of-window views |
| // revealed when the mouse is hovered over the find bar. |
| browser_view()->immersive_mode_controller()->OnFindBarVisibleBoundsChanged( |
| host()->GetWindowBoundsInScreen()); |
| } |
| |
| void FindBarHost::GetWidgetBounds(gfx::Rect* bounds) { |
| DCHECK(bounds); |
| // The BrowserView does Layout for the components that we care about |
| // positioning relative to, so we ask it to tell us where we should go. |
| *bounds = browser_view()->GetFindBarBoundingBox(); |
| } |
| |
| void FindBarHost::RegisterAccelerators() { |
| DropdownBarHost::RegisterAccelerators(); |
| |
| // Register for Ctrl+Return. |
| ui::Accelerator escape(ui::VKEY_RETURN, ui::EF_CONTROL_DOWN); |
| focus_manager()->RegisterAccelerator( |
| escape, ui::AcceleratorManager::kNormalPriority, this); |
| } |
| |
| void FindBarHost::UnregisterAccelerators() { |
| // Unregister Ctrl+Return. |
| ui::Accelerator escape(ui::VKEY_RETURN, ui::EF_CONTROL_DOWN); |
| focus_manager()->UnregisterAccelerator(escape, this); |
| |
| DropdownBarHost::UnregisterAccelerators(); |
| } |
| |
| void FindBarHost::OnVisibilityChanged() { |
| // Tell the immersive mode controller about the find bar's bounds. The |
| // immersive mode controller uses the bounds to keep the top-of-window views |
| // revealed when the mouse is hovered over the find bar. |
| gfx::Rect visible_bounds; |
| if (IsVisible()) |
| visible_bounds = host()->GetWindowBoundsInScreen(); |
| browser_view()->immersive_mode_controller()->OnFindBarVisibleBoundsChanged( |
| visible_bounds); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // private: |
| |
| void FindBarHost::GetWidgetPositionNative(gfx::Rect* avoid_overlapping_rect) { |
| gfx::Rect frame_rect = host()->GetTopLevelWidget()->GetWindowBoundsInScreen(); |
| content::WebContentsView* tab_view = |
| find_bar_controller_->web_contents()->GetView(); |
| gfx::Rect webcontents_rect = tab_view->GetViewBounds(); |
| avoid_overlapping_rect->Offset(0, webcontents_rect.y() - frame_rect.y()); |
| } |
| |
| FindBarView* FindBarHost::find_bar_view() { |
| return static_cast<FindBarView*>(view()); |
| } |