| # Copyright 2013 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. |
| |
| from telemetry.internal.actions import page_action |
| from telemetry.internal.actions import utils |
| from telemetry.util import js_template |
| |
| |
| class TapAction(page_action.PageAction): |
| def __init__(self, selector=None, text=None, element_function=None, |
| left_position_percentage=0.5, top_position_percentage=0.5, |
| duration_ms=50, |
| synthetic_gesture_source=page_action.GESTURE_SOURCE_DEFAULT): |
| super(TapAction, self).__init__() |
| self.selector = selector |
| self.text = text |
| self.element_function = element_function |
| self.left_position_percentage = left_position_percentage |
| self.top_position_percentage = top_position_percentage |
| self.duration_ms = duration_ms |
| self._synthetic_gesture_source = ('chrome.gpuBenchmarking.%s_INPUT' % |
| synthetic_gesture_source) |
| |
| def WillRunAction(self, tab): |
| utils.InjectJavaScript(tab, 'gesture_common.js') |
| utils.InjectJavaScript(tab, 'tap.js') |
| |
| # Fail if browser doesn't support synthetic tap gestures. |
| if not tab.EvaluateJavaScript('window.__TapAction_SupportedByBrowser()'): |
| raise page_action.PageActionNotSupported( |
| 'Synthetic tap not supported for this browser') |
| |
| tab.ExecuteJavaScript(""" |
| window.__tapActionDone = false; |
| window.__tapAction = new __TapAction(function() { |
| window.__tapActionDone = true; |
| });""") |
| |
| def HasElementSelector(self): |
| return (self.element_function is not None or self.selector is not None or |
| self.text is not None) |
| |
| def RunAction(self, tab): |
| if not self.HasElementSelector(): |
| self.element_function = 'document.body' |
| |
| code = js_template.Render(''' |
| function(element, errorMsg) { |
| if (!element) { |
| throw Error('Cannot find element: ' + errorMsg); |
| } |
| window.__tapAction.start({ |
| element: element, |
| left_position_percentage: {{ left_position_percentage }}, |
| top_position_percentage: {{ top_position_percentage }}, |
| duration_ms: {{ duration_ms }}, |
| gesture_source_type: {{ @gesture_source_type }} |
| }); |
| }''', |
| left_position_percentage=self.left_position_percentage, |
| top_position_percentage=self.top_position_percentage, |
| duration_ms=self.duration_ms, |
| gesture_source_type=self._synthetic_gesture_source) |
| |
| page_action.EvaluateCallbackWithElement( |
| tab, code, selector=self.selector, text=self.text, |
| element_function=self.element_function) |
| # The second disjunct handles the case where the tap action leads to an |
| # immediate navigation (in which case the expression below might already be |
| # evaluated on the new page). |
| tab.WaitForJavaScriptCondition( |
| 'window.__tapActionDone || window.__tapAction === undefined', |
| timeout=60) |