resizer¶
-
class
webix.ui.resizer(data)¶ Arguments: - data (object) – A configuration object
Resizer view.
References¶
- views
resizearea(),view().- helpers
_event(),assert(),bind(),event(),protoUI().- mixins
MouseEvents().
External references¶
Code¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 | webix.protoUI({
name:"resizer",
defaults:{
width:7, height:7
},
$init:function(config){
webix.assert(this.getParentView(), "Resizer can't be initialized outside a layout");
this._viewobj.className += " webix_resizer";
var space = this.getParentView()._margin;
webix._event(this._viewobj, webix.env.mouse.down, this._rsDown, {bind:this});
webix.event(document.body, webix.env.mouse.up, this._rsUp, {bind:this});
var dir = this._getResizeDir();
this._rs_started = false;
this._resizer_dir = dir;
this._resizer_dim = (dir=="x"?"width":"height");
if (dir=="x")
config.height = 0;
else
config.width = 0;
if (space>0){
this._viewobj.className += " webix_resizer_v"+dir;
this._viewobj.style.marginRight = "-"+space+"px";
if (dir == "x")
config.width = space;
else
config.height = space;
this.$nospace = true;
} else
this._viewobj.className += " webix_resizer_"+dir;
this._viewobj.innerHTML = "<div class='webix_resizer_content'></div>";
if (dir == "y" && space>0) this._viewobj.style.marginBottom = "-"+(config.height||this.defaults.height)+"px";
this._viewobj.setAttribute("tabindex", "-1");
this._viewobj.setAttribute("aria-grabbed", "false");
},
_rsDown:function(e){
var cells = this._getResizerCells();
//some sibling can block resize
if(cells && !this._settings.disabled){
e = e||event;
this._rs_started = true;
this._rs_process = webix.html.pos(e);
this._rsLimit = [];
this._viewobj.setAttribute("aria-grabbed", "true");
for(var i=0; i<2; i++)
cells[i].$view.setAttribute("aria-dropeffect", "move");
this._viewobj.setAttribute("aria-dropeffect", "move");
this._rsStart(e, cells[0]);
}
},
_rsUp:function(){
this._rs_started = false;
this._rs_process = false;
},
_rsStart:function(e, cell){
var dir,offset, pos,posParent,start;
e = e||event;
dir = this._resizer_dir;
/*layout position:relative to place absolutely positioned elements in it*/
this.getParentView()._viewobj.style.position = "relative";
pos = webix.html.offset(this._viewobj);
posParent = webix.html.offset(this.getParentView()._viewobj);
start = pos[dir]-posParent[dir];
offset = webix.html.offset(cell.$view)[dir]- webix.html.offset(this.getParentView().$view)[dir];
this._rs_progress = [dir,cell, start, offset];
/*resizer stick (resizerea ext)*/
this._resizeStick = new webix.ui.resizearea({
container:this.getParentView()._viewobj,
dir:dir,
eventPos:this._rs_process[dir],
start:start-1,
height: this.$height,
width: this.$width,
border: 1,
margin: this.getParentView()["_padding"+dir.toUpperCase()]
});
/*stops resizing on stick mouseup*/
this._resizeStick.attachEvent("onResizeEnd", webix.bind(this._rsEnd, this));
/*needed to stop stick moving when the limit for dimension is reached*/
this._resizeStick.attachEvent("onResize", webix.bind(this._rsResizeHandler, this));
webix.html.addCss(document.body,"webix_noselect",1);
},
_getResizeDir: function(){
return this.getParentView()._vertical_orientation?"y":"x";
},
_rsResizeHandler:function(){
var cells,config,cDiff,diff,dir,i,limits,limitSizes,sizes,totalSize;
if(this._rs_progress){
cells = this._getResizerCells();
dir = this._rs_progress[0];
/*vector distance between resizer and stick*/
diff = this._resizeStick._last_result -this._rs_progress[2];
/*new sizes for the resized cells, taking into account the stick position*/
sizes = this._rsGetDiffCellSizes(cells,dir,diff);
/*sum of cells dimensions*/
totalSize = cells[0]["$"+this._resizer_dim]+cells[1]["$"+this._resizer_dim];
/*max and min limits if they're set*/
limits = (dir=="y"?["minHeight","maxHeight"]:["minWidth","maxWidth"]);
for(i=0;i<2;i++){
config = cells[i]._settings;
cDiff = (i?-diff:diff);/*if cDiff is positive, the size of i cell is increased*/
/*if size is bigger than max limit or size is smaller than min limit*/
var min = config[limits[0]];
var max = config[limits[1]];
if(cDiff>0&&max&&max<=sizes[i] || cDiff<0&&(min||3)>=sizes[i]){
this._rsLimit[i] = (cDiff>0?max:(min||3));
/*new sizes, taking into account max and min limits*/
limitSizes = this._rsGetLimitCellSizes(cells,dir);
/*stick position*/
this._resizeStick._dragobj.style[(dir=="y"?"top":"left")] = this._rs_progress[3] + limitSizes[0]+"px";
return;
}else if(sizes[i]<3){/*cells size can not be less than 1*/
this._resizeStick._dragobj.style[(dir=="y"?"top":"left")] = this._rs_progress[3] + i*totalSize+1+"px";
}else{
this._rsLimit[i] = null;
}
}
}
},
_getResizerCells:function(){
var cells,i;
cells = this.getParentView()._cells;
for(i=0; i< cells.length;i++){
if(cells[i]==this){
if (!cells[i-1] || cells[i-1]._settings.$noresize) return null;
if (!cells[i+1] || cells[i+1]._settings.$noresize) return null;
return [cells[i-1],cells[i+1]];
}
}
},
_rsEnd:function(result){
if (typeof result == "undefined") return;
var cells,dir,diff,i,size;
var vertical = this.getParentView()._vertical_orientation;
this._resizerStick = null;
if (this._rs_progress){
dir = this._rs_progress[0];
diff = result-this._rs_progress[2];
cells = this._getResizerCells();
if(cells[0]&&cells[1]){
/*new cell sizes*/
size = this._rsGetCellSizes(cells,dir,diff);
for (var i=0; i<2; i++){
//cell has not fixed size, of fully fixed layout
var cell_size = cells[i].$getSize(0,0);
if (vertical?(cell_size[2] == cell_size[3]):(Math.abs(cell_size[1]-cell_size[0])<3)){
/*set fixed sizes for both cells*/
cells[i]._settings[this._resizer_dim]=size[i];
if (cells[i]._bubble_size)
cells[i]._bubble_size(this._resizer_dim, size[i], vertical);
} else {
var actualSize = cells[i].$view[vertical?"offsetHeight":"offsetWidth"];//cells[i]["$"+this._resizer_dim];
cells[i]._settings.gravity = size[i]/actualSize*cells[i]._settings.gravity;
}
}
cells[0].resize();
for (var i = 0; i < 2; i++){
if (cells[i].callEvent)
cells[i].callEvent("onViewResize",[]);
cells[i].$view.removeAttribute("aria-dropeffect");
}
webix.callEvent("onLayoutResize", [cells]);
}
this._rs_progress = false;
}
this._rs_progress = false;
this._rs_started = false;
this._rsLimit = null;
webix.html.removeCss(document.body,"webix_noselect");
this._viewobj.setAttribute("aria-grabbed", "false");
this._viewobj.removeAttribute("aria-dropeffect");
},
_rsGetLimitCellSizes: function(cells){
var size1,size2,totalSize;
totalSize = cells[0]["$"+this._resizer_dim]+cells[1]["$"+this._resizer_dim];
if(this._rsLimit[0]){
size1 = this._rsLimit[0];
size2 = totalSize-size1;
}
else if(this._rsLimit[1]){
size2 = this._rsLimit[1];
size1 = totalSize-size2;
}
return [size1,size2];
},
_rsGetDiffCellSizes:function(cells,dir,diff){
var sizes =[];
var styleDim = this._resizer_dim=="height"?"offsetHeight":"offsetWidth";
for(var i=0;i<2;i++)
sizes[i] = cells[i].$view[styleDim]+(i?-1:1)*diff;
return sizes;
},
_rsGetCellSizes:function(cells,dir,diff){
var i,sizes,totalSize;
/*if max or min dimentsions are set*/
if(this._rsLimit[0]||this._rsLimit[1]){
sizes = this._rsGetLimitCellSizes(cells,dir);
}
else{
sizes = this._rsGetDiffCellSizes(cells,dir,diff);
for(i =0; i<2;i++ ){
/*if stick moving is stopped outsize cells borders*/
if(sizes[i]<0){
totalSize = sizes[0]+sizes[1];
sizes[i] =1;
sizes[1-i] = totalSize-1;
}
}
}
return sizes;
}
}, webix.MouseEvents, webix.ui.view);
|