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   if (sizer) {
  30     sizer.resizeCallback_ = function() {
  31       this.scrollTo(this.pageXOffset, this.pageYOffset);
  32     }.bind(this);
  33   }
  34   this.pageXOffset = 0;
  35   this.pageYOffset = 0;
  36   this.scrollCallback = null;
  37   this.resizeCallback = null;
  38 }
  39
  40 function MockSizer() {
  41   var sizer = this;
  42   this.style = {
  43     width_: '0px',
  44     height_: '0px',
  45     get height() { return this.height_; },
  46     set height(height) {
  47       this.height_ = height;
  48       if (sizer.resizeCallback_)
  49         sizer.resizeCallback_();
  50     },
  51     get width() { return this.width_; },
  52     set width(width) {
  53       this.width_ = width;
  54       if (sizer.resizeCallback_)
  55         sizer.resizeCallback_();
  56     },
  57   };
  58 }
  59
  60 function MockViewportChangedCallback() {
  61   this.wasCalled = false;
  62   this.callback = function() {
  63     this.wasCalled = true;
  64   }.bind(this);
  65   this.reset = function() {
  66     this.wasCalled = false;
  67   };
  68 }
  69
  70 function MockDocumentDimensions(width, height) {
  71   this.width = width || 0;
  72   this.height = height ? height : 0;
  73   this.pageDimensions = [];
  74   this.addPage = function(w, h) {
  75     var y = 0;
  76     if (this.pageDimensions.length != 0) {
  77       y = this.pageDimensions[this.pageDimensions.length - 1].y +
  78           this.pageDimensions[this.pageDimensions.length - 1].height;
  79     }
  80     this.width = Math.max(this.width, w);
  81     this.height += h;
  82     this.pageDimensions.push({
  83       x: 0,
  84       y: y,
  85       width: w,
  86       height: h
  87     });
  88   };
  89   this.reset = function() {
  90     this.width = 0;
  91     this.height = 0;
  92     this.pageDimensions = [];
  93   };
  94 }