chrome/test/data/pdf/test_util.js

   1 // Copyright 2015 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
   5 // Utilities that are used in multiple tests.
   6 function MockWindow(width, height, sizer) {
   7   this.innerWidth = width;
   8   this.innerHeight = height;
   9   this.addEventListener = function(e, f) {
  10     if (e == 'scroll')
  11       this.scrollCallback = f;
  12     if (e == 'resize')
  13       this.resizeCallback = f;
  14   };
  15   this.setSize = function(width, height) {
  16     this.innerWidth = width;
  17     this.innerHeight = height;
  18     this.resizeCallback();
  19   }
  20   this.scrollTo = function(x, y) {
  21     if (sizer) {
  22       x = Math.min(x, parseInt(sizer.style.width) - width);
  23       y = Math.min(y, parseInt(sizer.style.height) - height);
  24     }
  25     this.pageXOffset = Math.max(0, x);
  26     this.pageYOffset = Math.max(0, y);
  27     this.scrollCallback();
  28   };
  29   this.setTimeout = function(callback, time) {
  30     this.timerCallback = callback;
  31     return "timerId";
  32   };
  33   this.runTimeout = function() {
  34     if (this.timerCallback)
  35       this.timerCallback();
  36   }
  37   if (sizer) {
  38     sizer.resizeCallback_ = function() {
  39       this.scrollTo(this.pageXOffset, this.pageYOffset);
  40     }.bind(this);
  41   }
  42   this.pageXOffset = 0;
  43   this.pageYOffset = 0;
  44   this.scrollCallback = null;
  45   this.resizeCallback = null;
  46   this.timerCallback = null;
  47 }
  48
  49 function MockSizer() {
  50   var sizer = this;
  51   this.style = {
  52     width_: '0px',
  53     height_: '0px',
  54     get height() { return this.height_; },
  55     set height(height) {
  56       this.height_ = height;
  57       if (sizer.resizeCallback_)
  58         sizer.resizeCallback_();
  59     },
  60     get width() { return this.width_; },
  61     set width(width) {
  62       this.width_ = width;
  63       if (sizer.resizeCallback_)
  64         sizer.resizeCallback_();
  65     },
  66   };
  67 }
  68
  69 function MockViewportChangedCallback() {
  70   this.wasCalled = false;
  71   this.callback = function() {
  72     this.wasCalled = true;
  73   }.bind(this);
  74   this.reset = function() {
  75     this.wasCalled = false;
  76   };
  77 }
  78
  79 function MockDocumentDimensions(width, height) {
  80   this.width = width || 0;
  81   this.height = height ? height : 0;
  82   this.pageDimensions = [];
  83   this.addPage = function(w, h) {
  84     var y = 0;
  85     if (this.pageDimensions.length != 0) {
  86       y = this.pageDimensions[this.pageDimensions.length - 1].y +
  87           this.pageDimensions[this.pageDimensions.length - 1].height;
  88     }
  89     this.width = Math.max(this.width, w);
  90     this.height += h;
  91     this.pageDimensions.push({
  92       x: 0,
  93       y: y,
  94       width: w,
  95       height: h
  96     });
  97   };
  98   this.reset = function() {
  99     this.width = 0;
 100     this.height = 0;
 101     this.pageDimensions = [];
 102   };
 103 }
 104
 105 function importHTML(src) {
 106   var link = document.createElement('link');
 107   var promise = new Promise(function(resolve, reject) {
 108     link.onload = resolve;
 109     link.onerror = reject;
 110   });
 111   link.rel = 'import';
 112   link.href = src;
 113   document.head.appendChild(link);
 114   return promise;
 115 }
 116
 117 /**
 118  * Import iron-test-helpers into the test document.
 119  * @example
 120  *   importTestHelpers().then(function() {
 121  *     chrome.test.runTests(...);
 122  *   })
 123  */
 124 function importTestHelpers() {
 125   return importHTML('chrome://resources/polymer/v1_0/iron-test-helpers/' +
 126       'iron-test-helpers.html');
 127 }