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| 1 # Copyright 2012 The Chromium Authors. All rights reserved. | |
| 2 # Use of this source code is governed by a BSD-style license that can be | |
| 3 # found in the LICENSE file. | |
| 4 import os | |
| 5 | |
| 6 from telemetry.internal.actions import page_action | |
| 7 | |
| 8 | |
| 9 class ScrollAction(page_action.PageAction): | |
| 10 # TODO(chrishenry): Ignore attributes, to be deleted when usage in | |
| 11 # other repo is cleaned up. | |
| 12 def __init__(self, selector=None, text=None, element_function=None, | |
| 13 left_start_ratio=0.5, top_start_ratio=0.5, direction='down', | |
| 14 distance=None, distance_expr=None, | |
| 15 speed_in_pixels_per_second=800, use_touch=False, | |
| 16 synthetic_gesture_source=page_action.GESTURE_SOURCE_DEFAULT): | |
| 17 super(ScrollAction, self).__init__() | |
| 18 if direction not in ('down', 'up', 'left', 'right', | |
| 19 'downleft', 'downright', | |
| 20 'upleft', 'upright'): | |
| 21 raise page_action.PageActionNotSupported( | |
| 22 'Invalid scroll direction: %s' % self.direction) | |
| 23 self._selector = selector | |
| 24 self._text = text | |
| 25 self._element_function = element_function | |
| 26 self._left_start_ratio = left_start_ratio | |
| 27 self._top_start_ratio = top_start_ratio | |
| 28 self._direction = direction | |
| 29 self._speed = speed_in_pixels_per_second | |
| 30 self._use_touch = use_touch | |
| 31 self._synthetic_gesture_source = ('chrome.gpuBenchmarking.%s_INPUT' % | |
| 32 synthetic_gesture_source) | |
| 33 | |
| 34 self._distance_func = 'null' | |
| 35 if distance: | |
| 36 assert not distance_expr | |
| 37 distance_expr = str(distance) | |
| 38 if distance_expr: | |
| 39 self._distance_func = ('function() { return 0 + %s; }' % | |
| 40 distance_expr) | |
| 41 | |
| 42 def WillRunAction(self, tab): | |
| 43 if self._direction in ('downleft', 'downright', 'upleft', 'upright'): | |
| 44 # Diagonal scrolling support was added in Chrome branch number 2332. | |
| 45 branch_num = ( | |
| 46 tab.browser._browser_backend.devtools_client.GetChromeBranchNumber()) | |
| 47 if branch_num < 2332: | |
| 48 raise ValueError('Diagonal scrolling requires Chrome branch number' | |
| 49 ' 2332 or later. Found branch number %d' % | |
| 50 branch_num) | |
| 51 for js_file in ['gesture_common.js', 'scroll.js']: | |
| 52 with open(os.path.join(os.path.dirname(__file__), js_file)) as f: | |
| 53 js = f.read() | |
| 54 tab.ExecuteJavaScript(js) | |
| 55 | |
| 56 # Fail if browser doesn't support synthetic scroll gestures. | |
| 57 if not tab.EvaluateJavaScript('window.__ScrollAction_SupportedByBrowser()'): | |
| 58 raise page_action.PageActionNotSupported( | |
| 59 'Synthetic scroll not supported for this browser') | |
| 60 | |
| 61 # Fail if this action requires touch and we can't send touch events. | |
| 62 if self._use_touch: | |
| 63 if not page_action.IsGestureSourceTypeSupported(tab, 'touch'): | |
| 64 raise page_action.PageActionNotSupported( | |
| 65 'Touch scroll not supported for this browser') | |
| 66 | |
| 67 if (self._synthetic_gesture_source == | |
| 68 'chrome.gpuBenchmarking.MOUSE_INPUT'): | |
| 69 raise page_action.PageActionNotSupported( | |
| 70 'Scroll requires touch on this page but mouse input was requested') | |
| 71 | |
| 72 done_callback = 'function() { window.__scrollActionDone = true; }' | |
| 73 tab.ExecuteJavaScript(""" | |
| 74 window.__scrollActionDone = false; | |
| 75 window.__scrollAction = new __ScrollAction(%s, %s);""" | |
| 76 % (done_callback, self._distance_func)) | |
| 77 | |
| 78 def RunAction(self, tab): | |
| 79 if (self._selector is None and self._text is None and | |
| 80 self._element_function is None): | |
| 81 self._element_function = '(document.scrollingElement || document.body)' | |
| 82 | |
| 83 gesture_source_type = self._synthetic_gesture_source | |
| 84 if self._use_touch: | |
| 85 gesture_source_type = 'chrome.gpuBenchmarking.TOUCH_INPUT' | |
| 86 | |
| 87 code = ''' | |
| 88 function(element, info) { | |
| 89 if (!element) { | |
| 90 throw Error('Cannot find element: ' + info); | |
| 91 } | |
| 92 window.__scrollAction.start({ | |
| 93 element: element, | |
| 94 left_start_ratio: %s, | |
| 95 top_start_ratio: %s, | |
| 96 direction: '%s', | |
| 97 speed: %s, | |
| 98 gesture_source_type: %s | |
| 99 }); | |
| 100 }''' % (self._left_start_ratio, | |
| 101 self._top_start_ratio, | |
| 102 self._direction, | |
| 103 self._speed, | |
| 104 gesture_source_type) | |
| 105 page_action.EvaluateCallbackWithElement( | |
| 106 tab, code, selector=self._selector, text=self._text, | |
| 107 element_function=self._element_function) | |
| 108 tab.WaitForJavaScriptExpression('window.__scrollActionDone', 60) | |
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Chromium Code Reviews
Issue 1647513002:
Delete tools/telemetry. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master