"use strict";
var has_explosive_modules_bug = (0 < Y.UA.ie && Y.UA.ie < 8);
/**
* PageLayout plugin for managing horizontally stacked columns on a page,
* sandwiched vertically between header and footer. Each column contains
* one or more modules.
*
* @module gallery-layout
* @submodule gallery-layout-cols
*/
Y.namespace('PageLayoutCols');
// must be done after defining Y.PageLayoutCols
Y.PageLayoutCols.collapse_classes =
{
vert_parent_class: Y.PageLayout.module_class,
horiz_parent_class: Y.PageLayout.module_cols_class,
collapse_parent_pattern: '(' + Y.PageLayout.expand_left_nub_class + '|' + Y.PageLayout.expand_right_nub_class + ')'
};
function adjustHeight(
/* int */ total_height,
/* object */ children)
{
var h = total_height;
if (children.hd)
{
h -= children.hd.get('offsetHeight');
}
if (children.ft)
{
h -= children.ft.get('offsetHeight');
}
h -= children.bd.vertMarginBorderPadding();
return Math.max(h, Y.PageLayout.min_module_height);
}
function getHeight(
/* int */ body_height,
/* array */ row_heights,
/* int */ col_index,
/* int */ row_index,
/* object */ module,
/* object */ module_info)
{
module_info.mbp = module.vertMarginBorderPadding();
return Math.max(1, Math.floor(body_height * row_heights[ col_index ][ row_index ] / 100.0) - module_info.mbp);
}
Y.PageLayoutCols.resize = function(
/* enum */ mode,
/* int */ body_width,
/* int */ body_height)
{
var match_heights = this.get('matchColumnHeights');
var col_count = this.body_info.outers.size();
// fit-to-viewport: adjust for vertically collapsed modules
if (mode === Y.PageLayout.FIT_TO_VIEWPORT)
{
var row_heights = [],
col_heights = [];
for (var i=0; i<col_count; i++)
{
var heights = this.body_info.inner_sizes[i].slice(0);
row_heights.push(heights);
col_heights.push(body_height);
var uncollapsed_count = 0,
sum = 0;
var modules = this.body_info.modules[i];
var count = modules.size();
for (var j=0; j<count; j++)
{
var module = modules.item(j);
if (module.hasClass(Y.PageLayout.collapsed_vert_class))
{
module.setStyle('height', 'auto');
heights[j] = - module.get('offsetHeight');
col_heights[i] -= module.totalHeight();
}
else if (heights[j] > 0)
{
uncollapsed_count++;
sum += heights[j];
}
}
if (uncollapsed_count < count)
{
for (var j=0; j<count; j++)
{
if (heights[j] > 0)
{
heights[j] *= (100.0 / sum);
}
}
}
}
}
// adjust for horizontally collapsed or fixed width modules
var module_info = {};
var col_widths = this.body_info.outer_sizes.slice(0);
var uncollapsed_count = 0,
sum = 0;
for (var i=0; i<col_count; i++)
{
var col = this.body_info.outers.item(i);
var collapsed = col.hasClass(Y.PageLayout.collapsed_horiz_class);
var modules = this.body_info.modules[i];
if (collapsed || col_widths[i] < 0)
{
col_widths[i] = 0;
if (collapsed)
{
col.setStyle('width', 'auto');
modules.item(0).setStyle('width', 'auto');
}
else if (has_explosive_modules_bug)
{
var children = modules.item(0)._page_layout.children;
if (children.bd)
{
var root_w = children.bd.totalWidth() + modules.item(j).horizMarginBorderPadding();
children.root.setStyle('width', root_w+'px');
col.setStyle('width', root_w+'px');
}
}
body_width -= col.totalWidth();
}
else
{
uncollapsed_count++;
sum += col_widths[i];
if (modules.size() == 1)
{
modules.item(0).setStyle('height', 'auto');
}
}
}
if (uncollapsed_count < col_count)
{
for (var i=0; i<col_count; i++)
{
col_widths[i] *= (100.0 / sum);
}
}
// set width of each column and size of each module
var total_w = 0,
m = 0,
ftc_size = [];
for (var i=0; i<col_count; i++)
{
if (col_widths[i] == 0)
{
var module = this.body_info.modules[i].item(0);
var children = module._page_layout.children;
if (mode === Y.PageLayout.FIT_TO_VIEWPORT)
{
var h = getHeight(col_heights[i], row_heights, i, 0, module, module_info);
module.setStyle('height', h+'px');
if (children.bd)
{
var h1 = adjustHeight(h, children);
var w1 = children.bd.insideWidth();
this.fire('beforeResizeModule', { bd: children.bd, height: h1, width: w1 });
children.bd.setStyle('height', h1+'px');
this.fire('afterResizeModule', { bd: children.bd, height: h1, width: w1 });
}
}
else if (children.bd)
{
this.fire('beforeResizeModule', { bd: children.bd, height: 'auto', width: 'auto' });
children.root.setStyle('height', 'auto');
children.bd.setStyle('height', 'auto');
if (match_heights)
{
ftc_size.push([ [children.bd, children.bd.insideWidth()] ]);
}
else
{
this.fire('afterResizeModule',
{
bd: children.bd,
height: children.bd.insideHeight(),
width: children.bd.insideWidth()
});
}
}
continue;
}
m++;
var w = Math.max(1, Math.floor(body_width * col_widths[i] / 100.0));
total_w += w;
if (m == uncollapsed_count)
{
w += body_width - total_w;
}
w = Math.max(1, w - this.body_info.outers.item(i).horizMarginBorderPadding());
this.body_info.outers.item(i).setStyle('width', w+'px');
w = Math.max(1, w - this.body_info.modules[0].item(0).horizMarginBorderPadding());
var modules = this.body_info.modules[i];
if (mode === Y.PageLayout.FIT_TO_VIEWPORT)
{
// adjust for vertically collapsed or fixed height modules
var total_h = 0;
var open_count = modules.size();
var count = open_count;
for (var j=0; j<count; j++)
{
var h = row_heights[i][j];
if (h < 0)
{
total_h += modules.item(j).totalHeight();
open_count--;
}
}
// set the height of each module
var k = 0;
for (var j=0; j<count; j++)
{
var module = modules.item(j);
var children = module._page_layout.children;
if (row_heights[i][j] < 0)
{
var h1 = children.bd.insideHeight();
var w1 = w - children.root.horizMarginBorderPadding() -
children.bd.horizMarginBorderPadding();
this.fire('beforeResizeModule', { bd: children.bd, height: h1, width: w1 });
module.setStyle('width', w+'px');
this.fire('afterResizeModule', { bd: children.bd, height: h1, width: w1 });
continue;
}
k++;
if (children.bd)
{
var h = getHeight(col_heights[i], row_heights, i, j, module, module_info);
var h1 = adjustHeight(h, children);
total_h += h + module_info.mbp;
if (k == open_count)
{
h1 += body_height - total_h;
}
var w1 = Math.max(1, w - children.bd.horizMarginBorderPadding());
this.fire('beforeResizeModule', { bd: children.bd, height: h1, width: w1 });
this._setWidth(children, w);
children.bd.setStyle('height', h1+'px');
this.fire('afterResizeModule', { bd: children.bd, height: h1, width: w1 });
}
}
}
else
{
// set the width of each module
// clear the height of each module
ftc_size.push([]);
var count = modules.size();
for (var j=0; j<count; j++)
{
var children = modules.item(j)._page_layout.children;
if (children.bd)
{
var w1 = Math.max(1, w - children.bd.horizMarginBorderPadding());
this.fire('beforeResizeModule', { bd: children.bd, height: 'auto', width: w1 });
this._setWidth(children, w);
children.root.setStyle('height', 'auto');
children.bd.setStyle('height', 'auto');
if (match_heights)
{
ftc_size[i].push([children.bd, w1]);
}
else
{
this.fire('afterResizeModule',
{
bd: children.bd,
height: children.bd.insideHeight(),
width: w1
});
}
}
}
}
}
// set the height of the last module in each column
if (mode === Y.PageLayout.FIT_TO_CONTENT && match_heights)
{
var h = 0;
for (var i=0; i<col_count; i++)
{
h = Math.max(h, this.body_info.outers.item(i).get('offsetHeight'));
}
for (var i=0; i<col_count; i++)
{
var modules = this.body_info.modules[i],
count = modules.size(),
module = null,
w1 = 0;
for (var j=count-1; j>=0; j--)
{
var module1 = modules.item(j);
if (count == 1 ||
(!module &&
!module1.hasClass(Y.PageLayout.collapsed_vert_class) &&
this.body_info.inner_sizes[i][j] > 0))
{
module = module1;
w1 = ftc_size[i][j][1];
}
else
{
var bd = ftc_size[i][j][0];
this.fire('afterResizeModule',
{
bd: bd,
height: bd.insideHeight(),
width: ftc_size[i][j][1]
});
}
}
if (module)
{
var delta = h - this.body_info.outers.item(i).get('offsetHeight');
if (delta > 0 && module.get('parentNode').hasClass(Y.PageLayout.collapsed_horiz_class))
{
module.setStyle('height', (module.insideHeight() + delta)+'px');
}
else // always fire afterResizeModule
{
var children = module._page_layout.children;
if (children.bd)
{
var h1 = children.bd.insideHeight() + delta;
module.setStyle('height', 'auto');
children.bd.setStyle('height', h1+'px');
this.fire('afterResizeModule', { bd: children.bd, height: h1, width: w1 });
}
}
}
}
}
};
