/// <summary>
/// Adds a styling rule to the prioritizer.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="selector">The selector which caused this style to be considered.</param>
/// <param name="navigationExpression">The navigation expression associated with the style.</param>
/// <param name="rule">The styling rule to add to the prioritizer.</param>
/// <param name="index">The index of the rule's rule set within the style sheet.</param>
public void Add(UltravioletContext uv, UvssSelector selector, NavigationExpression?navigationExpression, UvssRule rule, Int32 index)
{
Contract.Require(uv, nameof(uv));
var key = new StyleKey(rule.CanonicalName, navigationExpression);
var priority = CalculatePriorityFromSelector(selector, rule.IsImportant);
PrioritizedStyle existing;
if (!rules.TryGetValue(key, out existing))
{
rules[key] = new PrioritizedStyle(rule, selector, priority, index);
}
else
{
var comparison = selector.ComparePriority(existing.Selector);
if (comparison == 0 && index > existing.Index)
{
comparison = 1;
}
if (comparison > 0 && (rule.IsImportant || !existing.Style.IsImportant))
{
rules[key] = new PrioritizedStyle(rule, selector, priority, index);
}
}
}
/// <summary>
/// Adds a style to the prioritizer.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="selector">The selector which caused this style to be considered.</param>
/// <param name="navigationExpression">The navigation expression associated with the style.</param>
/// <param name="style">The style to add to the prioritizer.</param>
public void Add(UltravioletContext uv, UvssSelector selector, NavigationExpression? navigationExpression, UvssStyle style)
{
Contract.Require(uv, "uv");
var key = new StyleKey(style.CanonicalName, navigationExpression);
var priority = CalculatePriorityFromSelector(selector, style.IsImportant);
PrioritizedStyle existing;
if (!styles.TryGetValue(key, out existing))
{
styles[key] = new PrioritizedStyle(style, selector, priority);
}
else
{
if (selector.IsHigherPriorityThan(existing.Selector) && (style.IsImportant || !existing.Style.IsImportant))
{
styles[key] = new PrioritizedStyle(style, selector, priority);
}
}
}
/// <summary>
/// Adds a styling rule to the prioritizer.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="selector">The selector which caused this style to be considered.</param>
/// <param name="navigationExpression">The navigation expression associated with the style.</param>
/// <param name="rule">The styling rule to add to the prioritizer.</param>
/// <param name="index">The index of the rule's rule set within the style sheet.</param>
public void Add(UltravioletContext uv, UvssSelector selector, NavigationExpression? navigationExpression, UvssRule rule, Int32 index)
{
Contract.Require(uv, nameof(uv));
var key = new StyleKey(rule.CanonicalName, navigationExpression);
var priority = CalculatePriorityFromSelector(selector, rule.IsImportant);
PrioritizedStyle existing;
if (!rules.TryGetValue(key, out existing))
{
rules[key] = new PrioritizedStyle(rule, selector, priority, index);
}
else
{
var comparison = selector.ComparePriority(existing.Selector);
if (comparison == 0 && index > existing.Index)
comparison = 1;
if (comparison > 0 && (rule.IsImportant || !existing.Style.IsImportant))
{
rules[key] = new PrioritizedStyle(rule, selector, priority, index);
}
}
}
