274 lines
10 KiB
GDScript
274 lines
10 KiB
GDScript
class_name StyleManager
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extends RefCounted
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static var body_text_color: Color = Color.BLACK
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static func parse_size(val):
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if val == null: return null
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if typeof(val) == TYPE_INT or typeof(val) == TYPE_FLOAT:
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return float(val)
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if val.ends_with("px"):
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return float(val.replace("px", ""))
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if val.ends_with("rem"):
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return float(val.replace("rem", "")) * 16.0
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if val.ends_with("%") or (val.ends_with("]") and "%" in val):
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var clean_val = val.replace("[", "").replace("]", "")
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return clean_val
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if val == "full":
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return null
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return float(val)
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static func apply_element_styles(node: Control, element: HTMLParser.HTMLElement, parser: HTMLParser) -> Control:
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var styles = parser.get_element_styles_with_inheritance(element, "", [])
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var label = null
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if not (node is FlexContainer):
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label = node if node is RichTextLabel else node.get_node_or_null("RichTextLabel")
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if label and styles.has("font-family") and styles["font-family"] not in ["sans-serif", "serif", "monospace"]:
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var main_node = Engine.get_main_loop().current_scene
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main_node.register_font_dependent_element(label, styles, element, parser)
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var width = null
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var height = null
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if styles.has("width"):
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width = parse_size(styles["width"])
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if styles.has("height"):
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height = parse_size(styles["height"])
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# Skip width/height inheritance for buttons when inheriting from auto-sized containers
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var skip_sizing = SizingUtils.should_skip_sizing(node, element, parser)
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if (width != null or height != null) and not skip_sizing:
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# FlexContainers handle percentage sizing differently than regular controls
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if node is FlexContainer:
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if width != null and typeof(width) != TYPE_STRING:
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node.custom_minimum_size.x = width
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var should_center_h = styles.has("mx-auto") or styles.has("justify-self-center") or (styles.has("text-align") and styles["text-align"] == "center")
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node.size_flags_horizontal = Control.SIZE_SHRINK_CENTER if should_center_h else Control.SIZE_SHRINK_BEGIN
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node.set_meta("size_flags_set_by_style_manager", true)
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if height != null and typeof(height) != TYPE_STRING:
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node.custom_minimum_size.y = height
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var should_center_v = styles.has("my-auto") or styles.has("align-self-center")
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node.size_flags_vertical = Control.SIZE_SHRINK_CENTER if should_center_v else Control.SIZE_SHRINK_BEGIN
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if not node.has_meta("size_flags_set_by_style_manager"):
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node.set_meta("size_flags_set_by_style_manager", true)
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elif node is VBoxContainer or node is HBoxContainer or node is Container:
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# Hcontainer nodes (like ul, ol)
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SizingUtils.apply_container_dimension_sizing(node, width, height)
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elif node is HTMLP:
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# Only apply sizing if element has explicit size, otherwise preserve natural sizing
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var element_styles = parser.get_element_styles_internal(element, "")
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if element_styles.has("width") or element_styles.has("height"):
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var orig_h_flag = node.size_flags_horizontal
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var orig_v_flag = node.size_flags_vertical
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SizingUtils.apply_regular_control_sizing(node, width, height)
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if not element_styles.has("width"):
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node.size_flags_horizontal = orig_h_flag
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if not element_styles.has("height"):
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node.size_flags_vertical = orig_v_flag
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else:
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# regular controls
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SizingUtils.apply_regular_control_sizing(node, width, height)
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if label and label != node:
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label.anchors_preset = Control.PRESET_FULL_RECT
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# Apply background color and border radius
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if styles.has("background-color") or styles.has("border-radius"):
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var target_node_for_bg = node if node is FlexContainer else label
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if target_node_for_bg:
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if styles.has("background-color"):
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target_node_for_bg.set_meta("custom_css_background_color", styles["background-color"])
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if styles.has("border-radius"):
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target_node_for_bg.set_meta("custom_css_border_radius", styles["border-radius"])
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if target_node_for_bg.has_method("add_background_rect"):
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target_node_for_bg.call_deferred("add_background_rect")
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if label:
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apply_styles_to_label(label, styles, element, parser)
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return node
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static func apply_styles_to_label(label: Control, styles: Dictionary, element: HTMLParser.HTMLElement, parser, text_override: String = "") -> void:
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if label is Button:
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apply_font_to_button(label, styles)
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return
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if not label is RichTextLabel:
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return
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var text = text_override if text_override != "" else (element.get_preserved_text() if element.tag_name == "pre" else element.get_bbcode_formatted_text(parser))
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var font_size = 24 # default
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if styles.has("font-family"):
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var font_family = styles["font-family"]
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var font_resource = FontManager.get_font(font_family)
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# set a sans-serif fallback first
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if font_family not in ["sans-serif", "serif", "monospace"]:
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if not FontManager.loaded_fonts.has(font_family):
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# Font not loaded yet, use sans-serif as fallback
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var fallback_font = FontManager.get_font("sans-serif")
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apply_font_to_label(label, fallback_font)
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if font_resource:
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apply_font_to_label(label, font_resource)
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# Apply font size
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if styles.has("font-size"):
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font_size = int(styles["font-size"])
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# Apply color
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var color_tag = ""
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if styles.has("color"):
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var color = styles["color"] as Color
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if color == Color.BLACK and StyleManager.body_text_color != Color.BLACK:
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color = StyleManager.body_text_color
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color_tag = "[color=#%s]" % color.to_html(false)
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else:
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if StyleManager.body_text_color != Color.BLACK:
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color_tag = "[color=#%s]" % StyleManager.body_text_color.to_html(false)
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# Apply bold
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var bold_open = ""
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var bold_close = ""
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if styles.has("font-bold") and styles["font-bold"]:
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bold_open = "[b]"
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bold_close = "[/b]"
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# Apply italic
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var italic_open = ""
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var italic_close = ""
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if styles.has("font-italic") and styles["font-italic"]:
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italic_open = "[i]"
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italic_close = "[/i]"
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# Apply underline
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var underline_open = ""
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var underline_close = ""
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if styles.has("underline") and styles["underline"]:
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underline_open = "[u]"
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underline_close = "[/u]"
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# Apply monospace font
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var mono_open = ""
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var mono_close = ""
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if styles.has("font-mono") and styles["font-mono"]:
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# If font-family is already monospace, just use BBCode for styling
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if not (styles.has("font-family") and styles["font-family"] == "monospace"):
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mono_open = "[code]"
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mono_close = "[/code]"
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if styles.has("text-align"):
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match styles["text-align"]:
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"left":
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label.horizontal_alignment = HORIZONTAL_ALIGNMENT_LEFT
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"center":
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label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
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"right":
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label.horizontal_alignment = HORIZONTAL_ALIGNMENT_RIGHT
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"justify":
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label.horizontal_alignment = HORIZONTAL_ALIGNMENT_FILL
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# Construct final text
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var styled_text = "[font_size=%d]%s%s%s%s%s%s%s%s%s%s%s[/font_size]" % [
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font_size,
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color_tag,
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bold_open,
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italic_open,
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underline_open,
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mono_open,
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text,
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mono_close,
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underline_close,
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italic_close,
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bold_close,
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"[/color]" if color_tag.length() > 0 else "",
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]
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label.text = styled_text
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static func apply_flex_container_properties(node: FlexContainer, styles: Dictionary) -> void:
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FlexUtils.apply_flex_container_properties(node, styles)
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static func apply_flex_item_properties(node: Control, styles: Dictionary) -> void:
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FlexUtils.apply_flex_item_properties(node, styles)
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static func parse_flex_value(val):
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return FlexUtils.parse_flex_value(val)
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static func apply_body_styles(body: HTMLParser.HTMLElement, parser: HTMLParser, website_container: Control, website_background: Control) -> void:
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var styles = parser.get_element_styles_with_inheritance(body, "", [])
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# Apply background color
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if styles.has("background-color"):
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var style_box = StyleBoxFlat.new()
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style_box.bg_color = styles["background-color"] as Color
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website_background.add_theme_stylebox_override("panel", style_box)
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if styles.has("color"):
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StyleManager.body_text_color = styles["color"]
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# Apply padding
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var has_padding = styles.has("padding") or styles.has("padding-top") or styles.has("padding-right") or styles.has("padding-bottom") or styles.has("padding-left")
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if has_padding:
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var margin_container = MarginContainer.new()
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margin_container.name = "BodyMarginContainer"
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margin_container.size_flags_horizontal = website_container.size_flags_horizontal
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margin_container.size_flags_vertical = website_container.size_flags_vertical
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# ScrollContainer
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# |__ BodyMarginContainer
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# |__ WebsiteContainer
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var original_parent = website_container.get_parent()
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var container_index = website_container.get_index()
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original_parent.remove_child(website_container)
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original_parent.add_child(margin_container)
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original_parent.move_child(margin_container, container_index)
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margin_container.add_child(website_container)
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var margin_val = parse_size(styles["padding"])
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margin_container.add_theme_constant_override("margin_left", margin_val)
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margin_container.add_theme_constant_override("margin_right", margin_val)
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margin_container.add_theme_constant_override("margin_top", margin_val)
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margin_container.add_theme_constant_override("margin_bottom", margin_val)
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# Apply individual padding values
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var padding_sides = [
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["padding-top", "margin_top"],
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["padding-right", "margin_right"],
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["padding-bottom", "margin_bottom"],
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["padding-left", "margin_left"]
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]
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for side_pair in padding_sides:
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var style_key = side_pair[0]
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var margin_key = side_pair[1]
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if styles.has(style_key):
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var margin_val2 = parse_size(styles[style_key])
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margin_container.add_theme_constant_override(margin_key, margin_val2)
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static func parse_radius(radius_str: String) -> int:
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return SizeUtils.parse_radius(radius_str)
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static func apply_font_to_label(label: RichTextLabel, font_resource: Font) -> void:
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label.add_theme_font_override("normal_font", font_resource)
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label.add_theme_font_override("bold_font", font_resource)
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label.add_theme_font_override("italics_font", font_resource)
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label.add_theme_font_override("bold_italics_font", font_resource)
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static func apply_font_to_button(button: Button, styles: Dictionary) -> void:
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if styles.has("font-family"):
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var font_family = styles["font-family"]
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var font_resource = FontManager.get_font(font_family)
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# Set fallback first for FOUT prevention
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if font_family not in ["sans-serif", "serif", "monospace"]:
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if not FontManager.loaded_fonts.has(font_family):
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var fallback_font = FontManager.get_font("sans-serif")
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button.add_theme_font_override("font", fallback_font)
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if font_resource:
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button.add_theme_font_override("font", font_resource)
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