RIFT Button

Rowdy.Setup(...);

import "core";
import "string";
import "event";
import "class";

package "ui";

local base, metatable, methods = nil, nil, { };

-- private members
local function OnLeftDown(self)
    local protected = self[UI.Button];

    protected.textColor = { protected.text:GetFontColor() };
    protected.text:SetFontColor(.2, .5, .3, 1);

    protected.borderColor = { self:GetBorderColor() };
    self:SetBorderColor(.2, .5, .3, 1);
end

local function OnLeftUpOutside(self)
    local protected = self[UI.Button];

    if (not protected.textColor or not protected.borderColor) then
        return;
    end

    protected.text:SetFontColor(unpack(protected.textColor));
    self:SetBorderColor(unpack(protected.borderColor));
end

local function OnLeftUp(self)
    OnLeftUpOutside(self);

    self.Event.Click(self);
end

local function UpdateSize(self)
    local protected = self[UI.Button];
    local textFrame = protected.text;

    self:SetWidth(textFrame:GetWidth() + 20);
    self:SetHeight(textFrame:GetHeight() + 10);
end

-- public members
methods.SetText = function(self, text)
    local protected = self[UI.Button];
    local textFrame = protected.text;

    textFrame:SetText(text);

    if (protected.autosize) then
        UpdateSize(self);
    end
end

methods.SetAutoSize = function(self, value)
    self[UI.Button].autosize = value;

    if (value) then
        UpdateSize(self);
    end
end

methods.GetAutoSize = function(self, value)
    return self[UI.Button].autosize;
end

-- constructor
UI.Button = function(parent)
    assert(isInstanceOf(parent, UI.Context) or isInstanceOf(parent, UI.FrameBase),
        "UI.Button requires 'parent' (UI.Context) parameter");

    local name = parent:GetName() .. "Button";

    local self = UI.FramedFrame(name, parent);
    self:SetWidth(20);
    self:SetHeight(20);

    local text = UI.Text(name .. "Text", self);
    text:SetPoint("CENTER", self, "CENTER", -0.5, -1);
    text:SetAutoSize(true);

    self.Event.LeftDown = OnLeftDown;
    self.Event.LeftUp = OnLeftUp;
    self.Event.LeftUpoutside = OnLeftUpOutside;

    self[UI.Button] = {
        text = text,
    };

    self.Event:add("Click");

    base, metatable = class(base, metatable, methods, self, UI.Button);

    self:SetAutoSize(true);

    return self;
end