DevTools: Add feature to capture full-height screenshots

third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js

 // Copyright 2015 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.
 /**
  * @implements {SDK.TargetManager.Observer}
  * @unrestricted
  */
 Emulation.DeviceModeModel = class {
   /**
    * @param {function()} updateCallback
@@ skipping 255 matching lines @@
   }
 
   /**
    * @return {boolean}
    */
   isFullHeight() {
     return !this._heightSetting.get();
   }
 
   /**
+   * @return {boolean}
+   */
+  isMobile() {
+    if (this._device && this._device.mobile())
+      return true;
+    return false;

[dgozman, 2017/01/12 21:49:35]

Note this is incorrect for responsive mode.

[ahmetemirercin, 2017/01/13 01:49:23]

Done.

+  }
+
+  /**
    * @return {!Common.Setting}
    */
   scaleSetting() {
     return this._scaleSetting;
   }
 
   /**
    * @return {!Common.Setting}
    */
   uaSetting() {
@@ skipping 229 matching lines @@
       outline,
       scale,
       deviceScaleFactor,
       mobile,
       screenOrientation,
       resetPageScaleFactor) {
     screenSize.width = Math.max(1, Math.floor(screenSize.width));
     screenSize.height = Math.max(1, Math.floor(screenSize.height));
 
     var pageWidth = screenSize.width - insets.left - insets.right;
+    this._emulatedPageWidth = pageWidth * scale;

[dgozman, 2017/01/12 21:49:35]

Use Size instead of width+height.

[ahmetemirercin, 2017/01/13 01:49:23]

Done.

+
     var pageHeight = screenSize.height - insets.top - insets.bottom;
+    this._emulatedPageHeight = pageHeight * scale;
 
     var positionX = insets.left;
     var positionY = insets.top;
     var screenOrientationAngle = screenOrientation === 'landscapePrimary' ? 90 : 0;
 
     this._appliedDeviceSize = screenSize;
     this._appliedDeviceScaleFactor = deviceScaleFactor || window.devicePixelRatio;
     this._screenRect = new Common.Rect(
         Math.max(0, (this._availableSize.width - screenSize.width * scale) / 2), outline.top * scale,
         screenSize.width * scale, screenSize.height * scale);
@@ skipping 53 matching lines @@
         if (screenOrientation)
           params.screenOrientation = {type: screenOrientation, angle: screenOrientationAngle};
         setDevicePromise = this._target.emulationAgent().invoke_setDeviceMetricsOverride(
             params, this._deviceMetricsOverrideAppliedForTest.bind(this));
       }
       allPromises.push(setDevicePromise);
       return Promise.all(allPromises);
     }
   }
 
+  resetVisibleSize() {
+    this._target.emulationAgent().setVisibleSize(this._emulatedPageWidth, this._emulatedPageHeight);

[dgozman, 2017/01/12 21:49:35]

If we reset not by passing zeroes, let's not change emulation_handler. 

Passing zero there should only reset to original. We don't really need it for
"not changing the size".

[ahmetemirercin, 2017/01/13 01:49:23]

Done.

+  }
+
   _deviceMetricsOverrideAppliedForTest() {
     // Used for sniffing in tests.
   }
 
   /**
    * @param {boolean} touchEnabled
    * @param {boolean} mobile
    */
   _applyTouch(touchEnabled, mobile) {
     Emulation.MultitargetTouchModel.instance().setTouchEnabled(touchEnabled, mobile);
@@ skipping 17 matching lines @@
 
 Emulation.DeviceModeModel.MinDeviceSize = 50;
 Emulation.DeviceModeModel.MaxDeviceSize = 9999;
 
 
 Emulation.DeviceModeModel._defaultMobileUserAgent =
     'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%s Mobile Safari/537.36';
 Emulation.DeviceModeModel._defaultMobileUserAgent =
     SDK.MultitargetNetworkManager.patchUserAgentWithChromeVersion(Emulation.DeviceModeModel._defaultMobileUserAgent);
 Emulation.DeviceModeModel.defaultMobileScaleFactor = 2;