From cd5c936939fc51ee60a3e9aebf91eaba34ad980a Mon Sep 17 00:00:00 2001 From: vieron Date: Wed, 3 Oct 2012 15:48:32 +0200 Subject: [PATCH] gridster extra methods Some new methods we need at Ducksboard to implement TV mode. Two new distributions of Gridster are generated with grunt: - jquery.gridster.with-extras.js - jquery.gridster.with-extras.min.js --- src/jquery.gridster.extras.js | 165 ++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 src/jquery.gridster.extras.js diff --git a/src/jquery.gridster.extras.js b/src/jquery.gridster.extras.js new file mode 100644 index 0000000000..750657e014 --- /dev/null +++ b/src/jquery.gridster.extras.js @@ -0,0 +1,165 @@ +;(function($, window, document, undefined) { + + var fn = $.Gridster; + + fn.widgets_in_col = function(col) { + if (!this.gridmap[col]) { + return false; + } + + for (var i = this.gridmap[col].length - 1; i >= 0; i--) { + if (this.is_widget(col, i) !== false) { + return true; + } + } + + return false; + }; + + fn.widgets_in_row = function(row) { + for (var i = this.gridmap.length; i >= 1; i--) { + if (this.is_widget(i, row) !== false) { + return true; + } + } + + return false; + }; + + + fn.widgets_in_range = function(col1, row1, col2, row2) { + var valid_cols = []; + var valid_rows = []; + var $widgets = $([]); + var c, r, $w, wgd; + + for (c = col2; c >= col1; c--) { + for (r = row2; r >= row1; r--) { + $w = this.is_widget(c, r); + + if ($w !== false) { + wgd = $w.data('coords').grid; + if (wgd.col >= col1 && wgd.col <= col2 && + wgd.row >= row1 && wgd.row <= row2 + ) { + $widgets = $widgets.add($w); + } + } + } + } + + return $widgets; + }; + + + fn.get_bottom_most_occupied_cell = function() { + var row = 0; + var col = 0; + this.for_each_cell(function($el, c, r) { + if ($el && r > row) { + row = r; + col = c; + } + }); + + return {col: col, row: row}; + }; + + + fn.get_right_most_occupied_cell = function() { + var row = 0; + var col = 0; + this.for_each_cell(function($el, c, r) { + if ($el) { + row = r; + col = c; + return false; + } + }); + + return {col: col, row: row}; + }; + + + fn.for_each_cell = function(callback, gridmap) { + gridmap || (gridmap = this.gridmap); + var cols = gridmap.length; + var rows = gridmap[1].length; + + cols_iter: + for (var c = cols - 1; c >= 1; c--) { + for (var r = rows - 1; r >= 1; r--) { + var $el = gridmap[c] && gridmap[c][r]; + if (callback) { + if (callback.call(this, $el, c, r) === false) { + break cols_iter; + } else { continue; } + } + } + } + }; + + + fn.next_position_in_range = function(size_x, size_y, max_rows) { + size_x || (size_x = 1); + size_y || (size_y = 1); + var ga = this.gridmap; + var cols_l = ga.length; + var valid_pos = []; + var rows_l; + + for (var c = 1; c < cols_l; c++) { + rows_l = max_rows || ga[c].length; + for (var r = 1; r <= rows_l; r++) { + var can_move_to = this.can_move_to({ + size_x: size_x, + size_y: size_y + }, c, r, max_rows); + + if (can_move_to) { + valid_pos.push({ + col: c, + row: r, + size_y: size_y, + size_x: size_x + }); + } + } + } + + if (valid_pos.length >= 1) { + return this.sort_by_col_asc(valid_pos)[0]; + } + + return false; + }; + + + fn.closest_to_right = function(col, row) { + if (!this.gridmap[col]) { return false; } + var cols_l = this.gridmap.length - 1; + + for (var c = col; c <= cols_l; c++) { + if (this.gridmap[c][row]) { + return { col: c, row: row }; + } + } + + return false; + }; + + + fn.closest_to_left = function(col, row) { + var cols_l = this.gridmap.length - 1; + if (!this.gridmap[col]) { return false; } + + for (var c = col; c >= 1; c--) { + if (this.gridmap[c][row]) { + return { col: c, row: row }; + } + } + + return false; + }; + +}(jQuery, window, document));