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1 /**
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2 * Roundcube splitter GUI class
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3 *
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4 * @licstart The following is the entire license notice for the
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5 * JavaScript code in this file.
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6 *
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7 * Copyright (c) 2006-2014, The Roundcube Dev Team
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8 *
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9 * The JavaScript code in this page is free software: you can redistribute it
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10 * and/or modify it under the terms of the GNU General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * @licend The above is the entire license notice
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15 * for the JavaScript code in this file.
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16 *
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17 * @constructor
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18 */
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19 function rcube_splitter(attrib)
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20 {
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21 this.p1id = attrib.p1;
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22 this.p2id = attrib.p2;
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23 this.id = attrib.id ? attrib.id : this.p1id + '_' + this.p2id + '_splitter';
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24 this.orientation = attrib.orientation;
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25 this.horizontal = (this.orientation == 'horizontal' || this.orientation == 'h');
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26 this.pos = attrib.start ? attrib.start * 1 : 0;
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27 this.relative = attrib.relative ? true : false;
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28 this.drag_active = false;
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29 this.callback = attrib.callback;
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30
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31 var me = this;
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32
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33 this.init = function()
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34 {
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35 this.p1 = document.getElementById(this.p1id);
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36 this.p2 = document.getElementById(this.p2id);
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37
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38 // create and position the handle for this splitter
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39 this.p1pos = this.relative ? $(this.p1).position() : $(this.p1).offset();
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40 this.p2pos = this.relative ? $(this.p2).position() : $(this.p2).offset();
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41
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42 if (this.horizontal) {
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43 var top = this.p1pos.top + this.p1.offsetHeight;
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44 this.layer = new rcube_layer(this.id, {x: 0, y: top, height: 10,
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45 width: '100%', vis: 1, parent: this.p1.parentNode});
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46 }
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47 else {
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48 var left = this.p1pos.left + this.p1.offsetWidth;
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49 this.layer = new rcube_layer(this.id, {x: left, y: 0, width: 10,
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50 height: '100%', vis: 1, parent: this.p1.parentNode});
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51 }
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52
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53 this.elm = this.layer.elm;
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54 this.elm.className = 'splitter '+(this.horizontal ? 'splitter-h' : 'splitter-v');
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55 this.elm.unselectable = 'on';
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56
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57 // add the mouse event listeners
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58 $(this.elm).mousedown(onDragStart);
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59 if (bw.ie)
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60 $(window).resize(onResize);
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61
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62 // read saved position from cookie
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63 var cookie = rcmail.get_cookie(this.id);
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64 if (cookie && !isNaN(cookie)) {
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65 this.pos = parseFloat(cookie);
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66 this.resize();
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67 }
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68 else if (this.pos) {
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69 this.resize();
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70 this.set_cookie();
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71 }
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72 };
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73
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74 /**
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75 * Set size and position of all DOM objects
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76 * according to the saved splitter position
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77 */
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78 this.resize = function()
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79 {
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80 if (this.horizontal) {
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81 var lh = this.layer.height;
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82 this.p1.style.height = Math.floor(this.pos - this.p1pos.top - lh / 2) + 'px';
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83 this.p2.style.top = Math.ceil(this.pos + lh / 2) + 'px';
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84 this.layer.move(this.layer.x, Math.round(this.pos - lh / 2 + 1));
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85 if (bw.ie) {
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86 var new_height = parseInt(this.p2.parentNode.offsetHeight, 10) - parseInt(this.p2.style.top, 10) - (bw.ie8 ? 2 : 0);
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87 this.p2.style.height = (new_height > 0 ? new_height : 0) + 'px';
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88 }
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89 }
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90 else {
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91 this.p1.style.width = Math.floor(this.pos - this.p1pos.left - this.layer.width / 2) + 'px';
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92 this.p2.style.left = Math.ceil(this.pos + this.layer.width / 2) + 'px';
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93 this.layer.move(Math.round(this.pos - this.layer.width / 2 + 1), this.layer.y);
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94 if (bw.ie) {
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95 var new_width = parseInt(this.p2.parentNode.offsetWidth, 10) - parseInt(this.p2.style.left, 10) ;
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96 this.p2.style.width = (new_width > 0 ? new_width : 0) + 'px';
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97 }
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98 }
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99 $(this.p2).resize();
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100 $(this.p1).resize();
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101 };
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102
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103 /**
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104 * Handler for mousedown events
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105 */
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106 function onDragStart(e)
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107 {
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108 me.drag_active = true;
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109
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110 // disable text selection while dragging the splitter
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111 if (bw.konq || bw.chrome || bw.safari)
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112 document.body.style.webkitUserSelect = 'none';
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113
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114 me.p1pos = me.relative ? $(me.p1).position() : $(me.p1).offset();
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115 me.p2pos = me.relative ? $(me.p2).position() : $(me.p2).offset();
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116
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117 // start listening to mousemove events
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118 $(document).bind('mousemove.'+me.id, onDrag).bind('mouseup.'+me.id, onDragStop);
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119
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120 // enable dragging above iframes
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121 $('iframe').each(function() {
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122 $('<div class="iframe-splitter-fix"></div>')
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123 .css({background: '#fff',
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124 width: this.offsetWidth+'px', height: this.offsetHeight+'px',
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125 position: 'absolute', opacity: '0.001', zIndex: 1000
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126 })
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127 .css($(this).offset())
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128 .appendTo('body');
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129 });
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130 };
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131
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132 /**
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133 * Handler for mousemove events
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134 */
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135 function onDrag(e)
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136 {
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137 if (!me.drag_active)
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138 return false;
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139
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140 // with timing events dragging action is more responsive
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141 window.clearTimeout(me.ts);
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142 me.ts = window.setTimeout(function() { onDragAction(e); }, 1);
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143
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144 return false;
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145 };
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146
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147 function onDragAction(e)
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148 {
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149 var pos = rcube_event.get_mouse_pos(e);
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150
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151 if (me.relative) {
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152 var parent = $(me.p1.parentNode).offset();
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153 pos.x -= parent.left;
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154 pos.y -= parent.top;
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155 }
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156
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157 if (me.horizontal) {
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158 if (((pos.y - me.layer.height * 1.5) > me.p1pos.top) && ((pos.y + me.layer.height * 1.5) < (me.p2pos.top + me.p2.offsetHeight))) {
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159 me.pos = pos.y;
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160 me.resize();
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161 }
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162 }
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163 else if (((pos.x - me.layer.width * 1.5) > me.p1pos.left) && ((pos.x + me.layer.width * 1.5) < (me.p2pos.left + me.p2.offsetWidth))) {
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164 me.pos = pos.x;
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165 me.resize();
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166 }
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167
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168 me.p1pos = me.relative ? $(me.p1).position() : $(me.p1).offset();
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169 me.p2pos = me.relative ? $(me.p2).position() : $(me.p2).offset();
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170 };
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171
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172 /**
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173 * Handler for mouseup events
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174 */
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175 function onDragStop(e)
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176 {
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177 me.drag_active = false;
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178
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179 // resume the ability to highlight text
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180 if (bw.konq || bw.chrome || bw.safari)
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181 document.body.style.webkitUserSelect = 'auto';
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182
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183 // cancel the listening for drag events
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184 $(document).unbind('.' + me.id);
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185
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186 // remove temp divs
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187 $('div.iframe-splitter-fix').remove();
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188
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189 me.set_cookie();
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190
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191 if (typeof me.callback == 'function')
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192 me.callback(me);
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193
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194 return bw.safari ? true : rcube_event.cancel(e);
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195 };
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196
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197 /**
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198 * Handler for window resize events
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199 */
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200 function onResize(e)
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201 {
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202 if (me.horizontal) {
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203 var new_height = parseInt(me.p2.parentNode.offsetHeight, 10) - parseInt(me.p2.style.top, 10) - (bw.ie8 ? 2 : 0);
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204 me.p2.style.height = (new_height > 0 ? new_height : 0) +'px';
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205 }
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206 else {
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207 var new_width = parseInt(me.p2.parentNode.offsetWidth, 10) - parseInt(me.p2.style.left, 10);
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208 me.p2.style.width = (new_width > 0 ? new_width : 0) + 'px';
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209 }
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210 };
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211
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212 /**
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213 * Saves splitter position in cookie
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214 */
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215 this.set_cookie = function()
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216 {
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217 var exp = new Date();
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218 exp.setYear(exp.getFullYear() + 1);
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219 rcmail.set_cookie(this.id, this.pos, exp);
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220 };
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221
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222 } // end class rcube_splitter
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