LESS template for spritesmith with Retina/responsive support / spritesmith 用 Retina/レスポンシブ対応 LESS テンプレート

spritesmith_template_less.txt

{{#block "sprites"}}
{{#each sprites}}
@{{strings.name_name}}: '{{name}}';
@{{strings.name_x}}: {{px.x}};
@{{strings.name_y}}: {{px.y}};
@{{strings.name_offset_x}}: {{px.offset_x}};
@{{strings.name_offset_y}}: {{px.offset_y}};
@{{strings.name_width}}: {{px.width}};
@{{strings.name_height}}: {{px.height}};
@{{strings.name_total_width}}: {{px.total_width}};
@{{strings.name_total_height}}: {{px.total_height}};
@{{strings.name_image}}: '{{{escaped_image}}}?__NOCACHE__';
@{{strings.name}}: {{px.x}} {{px.y}} {{px.offset_x}} {{px.offset_y}} {{px.width}} {{px.height}} {{px.total_width}} {{px.total_height}} '{{{escaped_image}}}?__NOCACHE__' '{{name}}';
{{/each}}
{{/block}}
{{#block "spritesheet"}}
@{{spritesheet_info.strings.name_width}}: {{spritesheet.px.width}};
@{{spritesheet_info.strings.name_height}}: {{spritesheet.px.height}};
@{{spritesheet_info.strings.name_image}}: '{{{spritesheet.escaped_image}}}';
@{{spritesheet_info.strings.name_sprites}}:{{#each sprites}} @{{strings.name}}{{/each}};
@{{spritesheet_info.strings.name}}: {{spritesheet.px.width}} {{spritesheet.px.height}} '{{{spritesheet.escaped_image}}}' @{{spritesheet_info.strings.name_sprites}};
{{/block}}
{{#block "sprite-functions-comment"}}
{{#if options.functions}}
// css sprite mixin
{{/if}}
{{/block}}

{{#block "sprite-functions"}}
{{#if options.functions}}
.sprite-width(@sprite) {
  width: extract(@sprite, 5);
}

.sprite-height(@sprite) {
  height: extract(@sprite, 6);
}

.sprite-position(@sprite) {
  @sprite-offset-x: extract(@sprite, 3);
  @sprite-offset-y: extract(@sprite, 4);
  background-position: @sprite-offset-x @sprite-offset-y;
}

.sprite-image(@sprite) {
  {{! DEV: We slice to trim off excess quotes on an escaped URL }}
  @sprite-image: extract(@sprite, 9);
  @sprite-image-bare: ~`"@{sprite-image}".slice(1, -1)`;
  background-image: url(@sprite-image-bare);
}

.sprite(@sprite) {
  .sprite-image(@sprite);
  .sprite-position(@sprite);
  .sprite-width(@sprite);
  .sprite-height(@sprite);
  background-repeat: no-repeat;
}

.sprite-responsive-size(@sprite) {
  background-size: unit(extract(@sprite, 7) / extract(@sprite, 5) * 100,%) unit(extract(@sprite, 8) / extract(@sprite, 6) * 100,%); 
}

.sprite-responsive-position(@sprite) {
  background-size: unit(extract(@sprite, 1) / (extract(@sprite, 7) - extract(@sprite, 5)) * 100,%) unit(extract(@sprite, 2) / (extract(@sprite, 8) - extract(@sprite, 6)) * 100,%);
}

.sprite-responsive(@sprite) {
  .sprite-image(@sprite);
  .sprite-responsive-size(@sprite);
  .sprite-responsive-position(@sprite);
  background-repeat: no-repeat;
  &:after {
    content: '';
    display: block;
    padding-top: unit(extract(@sprite, 6) / extract(@sprite, 5) * 100,%);
  }
}
{{/if}}
{{/block}}

{{#block "sprite-functions-comment"}}
{{#if options.functions}}
// Retina 対応の css sprite mixin
{{/if}}
{{/block}}

{{#block "sprite-functions"}}
{{#if options.functions}}
.sprite-retina-width(@sprite) {
  width: extract(@sprite, 5) / 2;
}

.sprite-retina-height(@sprite) {
  height: extract(@sprite, 6) / 2;
}

.sprite-retina-position(@sprite) {
  @sprite-offset-x: extract(@sprite, 3) / 2;
  @sprite-offset-y: extract(@sprite, 4) / 2;
  background-position: @sprite-offset-x @sprite-offset-y;
}

.sprite-retina-image(@sprite) {
  @sprite-image: extract(@sprite, 9);
  @sprite-image-bare: ~`"@{sprite-image}".slice(1, -1)`;
  background-image: url(@sprite-image-bare);
}

.sprite-retina-size(@sprite) {
  background-size: extract(@sprite, 7)/2 extract(@sprite, 8)/2;
}

.sprite-retina(@sprite) {
  .sprite-retina-image(@sprite);
  .sprite-retina-position(@sprite);
  .sprite-retina-width(@sprite);
  .sprite-retina-height(@sprite);
  .sprite-retina-size(@sprite);
  background-repeat: no-repeat;
}

.sprite-retina-responsive-size(@sprite) {
  background-size: unit((extract(@sprite, 7) / 2) / (extract(@sprite, 5) / 2) * 100,%) unit((extract(@sprite, 8) / 2) / (extract(@sprite, 6) / 2) * 100,%);
}

.sprite-retina-responsive-position(@sprite) {
  background-position: unit((extract(@sprite, 1) / 2) / ((extract(@sprite, 7) / 2) - (extract(@sprite, 5) / 2)) * 100,%) unit((extract(@sprite, 2) / 2) / ((extract(@sprite, 8) / 2) - (extract(@sprite, 6) / 2)) * 100,%);
}

.sprite-retina-responsive(@sprite) {
  .sprite-retina-image(@sprite);
  .sprite-retina-responsive-size(@sprite);
  .sprite-retina-responsive-position(@sprite);
  background-repeat: no-repeat;
  &:after {
	  content: '';
	  display: block;
	  padding-top: unit(extract(@sprite, 6) / extract(@sprite, 5) * 100,%);
  }
}
{{/if}}
{{/block}}
{{#block "spritesheet-functions"}}
{{#if options.functions}}
.sprites(@sprites, @i: 1) when (@i <= length(@sprites)) {
  @sprite: extract(@sprites, @i);
  @sprite-name: e(extract(@sprite, 10));
  .@{sprite-name} {
    .sprite(@sprite);
  }
  .sprites(@sprites, @i + 1);
}
.sprites-retina(@sprites, @i: 1) when (@i <= length(@sprites)) {
  @sprite: extract(@sprites, @i);
  @sprite-name: e(extract(@sprite, 10));
  .@{sprite-name} {
    .sprite-retina(@sprite);
  }
  .sprites-retina(@sprites, @i + 1);
}
{{/if}}
{{/block}}