common.py

# path is a list of int.
def command_init(node, time):
    return { "name": "init", "node": node, "time": time }

def command_layout_init(node):
    return { "name": "layout_init", "node": node }

def command_recalculate(time):
    return { "name": "recalculate", "time": time }

def command_add(path, node):
    return { "name": "add", "path": path, "node": node }

def command_remove(path, old_node):
    return { "name": "remove", "path": path, "old_node": old_node }

def command_layout_add(path, node):
    return { "name": "layout_add", "path": path, "node": node }

def command_layout_remove(path, old_node):
    return { "name": "layout_remove", "path": path, "old_node": old_node }

def command_replace(path, old_node, node):
    return { "name": "replace", "path": path, "old_node": old_node, "node": node }

def command_layout_replace(path, old_node, node):
    return { "name": "layout_replace", "path": path, "old_node": old_node, "node": node }

def command_replace_value(path, on, type_, k, old_value, v):
    return { "name": "replace_value", "path": path, "on": on, "type": type_, "key": k, "old_value": old_value, "value": v }

def command_insert_value(path, on, type_, k, v):
    return { "name": "insert_value", "path": path, "on": on, "type": type_, "key": k, "value": v }

def command_delete_value(path, on, type_, k, old_value):
    return { "name": "delete_value", "path": path, "on": on, "type": type_, "key": k, "old_value": old_value }

def command_layout_info_changed(path, old, new):
    return { "name": "layout_info_changed", "path": path, "old": old, "new": new }

def size(j):
    ret = 1
    for c in j["children"]:
        ret += size(c)
    return ret

def regularize_dom(j):
    if "id" not in j:
        return None
    elif j["name"] == "#comment":
        return None
    elif j["name"] == "#doctype":
        return None
    else:
        if "children" not in j:
            j["children"] = []
        tmp = []
        for c in j["children"]:
            c = regularize_dom(c)
            if c is not None:
                tmp.append(c)
        j["children"] = tmp

        if "attributes" not in j:
            j["attributes"] = {}

        if "properties" not in j:
            j["properties"] = {}

        return j

def regularize_layout(j):
    if "children" not in j:
        j["children"] = []
    tmp = []
    for c in j["children"]:
        c = regularize_layout(c)
        tmp.append(c)
    j["children"] = tmp

    if "x" not in j:
        j["x"] = 0
    if "y" not in j:
        j["y"] = 0
    if "width" not in j:
        j["width"] = 0
    if "height" not in j:
        j["height"] = 0
    return j